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30145515255 = 345151149261
BaseRepresentation
bin11100000100110100…
…000000111011110111
32212210220002211210000
4130010310000323313
5443214222442010
621503151002343
72115014436402
oct340464007367
985726084700
1030145515255
111186a3a2879
125a138093b3
132ac55838bb
14165d8c6d39
15bb67be7c0
hex704d00ef7

30145515255 has 40 divisors (see below), whose sum is σ = 54075488544. Its totient is φ = 16066641600.

The previous prime is 30145515241. The next prime is 30145515277. The reversal of 30145515255 is 55251554103.

30145515255 is a `hidden beast` number, since 3 + 0 + 1 + 4 + 551 + 52 + 55 = 666.

It is not a de Polignac number, because 30145515255 - 28 = 30145514999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 587325 + ... + 636585.

Almost surely, 230145515255 is an apocalyptic number.

30145515255 is a deficient number, since it is larger than the sum of its proper divisors (23929973289).

30145515255 is a wasteful number, since it uses less digits than its factorization.

30145515255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50789 (or 50780 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 30145515255 in words is "thirty billion, one hundred forty-five million, five hundred fifteen thousand, two hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 81 135 405 1511 4533 7555 13599 22665 40797 49261 67995 122391 147783 203985 246305 443349 611955 738915 1330047 2216745 3990141 6650235 19950705 74433371 223300113 372166855 669900339 1116500565 2009701017 3349501695 6029103051 10048505085 30145515255