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309860068903 = 7117579075861
BaseRepresentation
bin1001000001001010001…
…10010110111000100111
31002121210200101102111021
410200211012112320213
520034043134201103
6354203040352011
731246423062040
oct4404506267047
91077720342437
10309860068903
1110a457a26a80
1250077615607
13232b18341c8
1410dd687b8c7
1580d812abbd
hex4825196e27

309860068903 has 32 divisors (see below), whose sum is σ = 387321942528. Its totient is φ = 240823497600.

The previous prime is 309860068897. The next prime is 309860068913.

309860068903 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 309860068903 - 213 = 309860060711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309860068913) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 52865193 + ... + 52871053.

It is an arithmetic number, because the mean of its divisors is an integer number (12103810704).

Almost surely, 2309860068903 is an apocalyptic number.

309860068903 is a deficient number, since it is larger than the sum of its proper divisors (77461873625).

309860068903 is a wasteful number, since it uses less digits than its factorization.

309860068903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 309860068903 in words is "three hundred nine billion, eight hundred sixty million, sixty-eight thousand, nine hundred three".

Divisors: 1 7 11 77 757 907 5299 5861 6349 8327 9977 41027 58289 64471 69839 451297 686599 4436777 4806193 5315927 7552589 31057439 37211489 48804547 52868123 58475197 341631829 409326379 4024156739 28169097173 44265724129 309860068903