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30888886315 = 5721151109537
BaseRepresentation
bin11100110001000111…
…110000000000101011
32221201200220000011111
4130301013300000223
51001230023330230
622105024011151
72142312126100
oct346107600053
987650800144
1030888886315
1112110a75521
125ba0760ab7
132bb359a031
1416d0510aa7
15c0bbac92a
hex7311f002b

30888886315 has 24 divisors (see below), whose sum is σ = 43156219392. Its totient is φ = 21162355200.

The previous prime is 30888886313. The next prime is 30888886337. The reversal of 30888886315 is 51368888803.

It is not a de Polignac number, because 30888886315 - 21 = 30888886313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30888886315.

It is not an unprimeable number, because it can be changed into a prime (30888886313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227227 + ... + 336763.

It is an arithmetic number, because the mean of its divisors is an integer number (1798175808).

Almost surely, 230888886315 is an apocalyptic number.

30888886315 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30888886315 is a deficient number, since it is larger than the sum of its proper divisors (12267333077).

30888886315 is a wasteful number, since it uses less digits than its factorization.

30888886315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110707 (or 110700 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 58.

The spelling of 30888886315 in words is "thirty billion, eight hundred eighty-eight million, eight hundred eighty-six thousand, three hundred fifteen".

Divisors: 1 5 7 35 49 245 1151 5755 8057 40285 56399 109537 281995 547685 766759 3833795 5367313 26836565 126077087 630385435 882539609 4412698045 6177777263 30888886315