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13050297855 = 335753673889
BaseRepresentation
bin11000010011101101…
…11011110111111111
31020200111102211011000
430021312323313333
5203211334012410
65554545101343
7641253462420
oct141166736777
936614384130
1013050297855
115597609a31
122642627853
1312cc93284a
148bb2dd647
15515a89dc0
hex309dbbdff

13050297855 has 128 divisors (see below), whose sum is σ = 27425433600. Its totient is φ = 5764442112.

The previous prime is 13050297853. The next prime is 13050297889. The reversal of 13050297855 is 55879205031.

13050297855 is a `hidden beast` number, since 1 + 3 + 0 + 502 + 97 + 8 + 55 = 666.

It is not a de Polignac number, because 13050297855 - 21 = 13050297853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13050297855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13050297853) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3353751 + ... + 3357639.

It is an arithmetic number, because the mean of its divisors is an integer number (214261200).

Almost surely, 213050297855 is an apocalyptic number.

13050297855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13050297855 is an abundant number, since it is smaller than the sum of its proper divisors (14375135745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13050297855 is a wasteful number, since it uses less digits than its factorization.

13050297855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 13050297855 in words is "thirteen billion, fifty million, two hundred ninety-seven thousand, eight hundred fifty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 53 63 67 105 135 159 189 201 265 315 335 371 469 477 603 795 945 1005 1113 1407 1431 1809 1855 2345 2385 3015 3339 3551 3889 4221 5565 7035 7155 9045 10017 10653 11667 12663 16695 17755 19445 21105 24857 27223 31959 35001 50085 53265 58335 63315 74571 81669 95877 105003 124285 136115 159795 175005 206117 223713 245007 260563 372855 408345 479385 525015 618351 671139 735021 781689 1030585 1118565 1225035 1302815 1442819 1823941 1855053 2345067 3091755 3355695 3675105 3908445 4328457 5471823 5565159 7035201 7214095 9119705 9275265 11725335 12985371 13809839 16415469 21642285 27359115 27825795 35176005 38956113 41429517 49246407 64926855 69049195 82077345 96668873 124288551 194780565 207147585 246232035 290006619 372865653 483344365 621442755 870019857 1450033095 1864328265 2610059571 4350099285 13050297855