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23981069685 = 3543281132313
BaseRepresentation
bin10110010101011000…
…100001010101110101
32021220021121120012010
4112111120201111311
5343103123212220
615003341314433
71506162505026
oct262530412565
967807546163
1023981069685
11a196763661
124793265a19
1323523cba81
141236d0cc4d
159555021e0
hex595621575

23981069685 has 32 divisors (see below), whose sum is σ = 39402050688. Its totient is φ = 12447912960.

The previous prime is 23981069677. The next prime is 23981069687. The reversal of 23981069685 is 58696018932.

It is not a de Polignac number, because 23981069685 - 23 = 23981069677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23981069687) 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, 115089 + ... + 247401.

It is an arithmetic number, because the mean of its divisors is an integer number (1231314084).

Almost surely, 223981069685 is an apocalyptic number.

It is an amenable number.

23981069685 is a deficient number, since it is larger than the sum of its proper divisors (15420981003).

23981069685 is a wasteful number, since it uses less digits than its factorization.

23981069685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132645.

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 23981069685 in words is "twenty-three billion, nine hundred eighty-one million, sixty-nine thousand, six hundred eighty-five".

Divisors: 1 3 5 15 43 129 215 281 645 843 1405 4215 12083 36249 60415 132313 181245 396939 661565 1984695 5689459 17068377 28447295 37179953 85341885 111539859 185899765 557699295 1598737979 4796213937 7993689895 23981069685