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38910460730625 = 325411275612
BaseRepresentation
bin10001101100011100011000…
…01100001001110100000001
312002202210200220120102022100
420312032030030021310001
520100002110421340000
6214431115140301013
711124121330052061
oct1066161414116401
9162683626512270
1038910460730625
1111441919763900
1244451366a1769
131893318a92933
149873c24273a1
1547723c7d6a00
hex23638c309d01

38910460730625 has 135 divisors (see below), whose sum is σ = 77207936572767. Its totient is φ = 18863182800000.

The previous prime is 38910460730573. The next prime is 38910460730639. The reversal of 38910460730625 is 52603706401983.

The square root of 38910460730625 is 6237825.

It is a perfect power (a square), and thus also a powerful number.

38910460730625 is a `hidden beast` number, since 3 + 8 + 9 + 1 + 0 + 4 + 6 + 0 + 7 + 3 + 0 + 625 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 36958605850881 + 1951854879744 = 6079359^2 + 1397088^2 .

It is not a de Polignac number, because 38910460730625 - 211 = 38910460728577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 5146201845 + ... + 5146209405.

It is a 1-persistent number, because it is pandigital, but 2⋅38910460730625 = 77820921461250 is not.

Almost surely, 238910460730625 is an apocalyptic number.

38910460730625 is the 6237825-th square number.

38910460730625 is the 3118913-rd centered octagonal number.

It is an amenable number.

38910460730625 is a deficient number, since it is larger than the sum of its proper divisors (38297475842142).

38910460730625 is an frugal number, since it uses more digits than its factorization.

38910460730625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15170 (or 7580 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 38910460730625 in words is "thirty-eight trillion, nine hundred ten billion, four hundred sixty million, seven hundred thirty thousand, six hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 33 45 55 75 99 121 125 165 225 275 363 375 495 605 625 825 1089 1125 1375 1815 1875 2475 3025 4125 5445 5625 6875 7561 9075 12375 15125 20625 22683 27225 37805 45375 61875 68049 75625 83171 113415 136125 189025 226875 249513 340245 415855 567075 680625 748539 914881 945125 1247565 1701225 2079275 2744643 2835375 3742695 4574405 4725625 6237825 8233929 8506125 10396375 13723215 14176875 18713475 22872025 31189125 41169645 42530625 51981875 57168721 68616075 93567375 114360125 155945625 171506163 205848225 285843605 343080375 467836875 514518489 571800625 628855931 857530815 1029241125 1429218025 1715401875 1886567793 2572592445 3144279655 4287654075 5146205625 5659703379 6917415241 7146090125 9432838965 12862962225 15721398275 20752245723 21438270375 28298516895 34587076205 35730450625 47164194825 62256737169 64314811125 78606991375 103761228615 107191351875 141492584475 172935381025 235820974125 311283685845 321574055625 393034956875 518806143075 707462922375 864676905125 1179104870625 1556418429225 2594030715375 3537314611875 4323384525625 7782092146125 12970153576875 38910460730625