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469909083721 = 71123709374239
BaseRepresentation
bin1101101011010001100…
…00111001011001001001
31122220220202211210011211
412311220300321121021
530144333211134341
6555512342253121
745643533210430
oct6655060713111
91586822753154
10469909083721
11171318477750
12770a37271a1
1335409ca297c
1418a5aab0117
15c35404b181
hex6d68c39649

469909083721 has 32 divisors (see below), whose sum is σ = 612196761600. Its totient is φ = 349747865280.

The previous prime is 469909083641. The next prime is 469909083739. The reversal of 469909083721 is 127380909964.

It is a de Polignac number, because none of the positive numbers 2k-469909083721 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (469909083781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1068520 + ... + 1442758.

It is an arithmetic number, because the mean of its divisors is an integer number (19131148800).

Almost surely, 2469909083721 is an apocalyptic number.

It is an amenable number.

469909083721 is a deficient number, since it is larger than the sum of its proper divisors (142287677879).

469909083721 is a wasteful number, since it uses less digits than its factorization.

469909083721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374989.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 469909083721 in words is "four hundred sixty-nine billion, nine hundred nine million, eighty-three thousand, seven hundred twenty-one".

Divisors: 1 7 11 23 77 161 253 709 1771 4963 7799 16307 54593 114149 179377 374239 1255639 2619673 4116629 8607497 28816403 60252479 94682467 265335451 662777269 1857348157 2918689961 6102715373 20430829727 42719007611 67129869103 469909083721