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23893869689 = 295479150379
BaseRepresentation
bin10110010000001011…
…111000010001111001
32021200012112100021122
4112100023320101321
5342413312312224
614550544315025
71504053353444
oct262013702171
967605470248
1023893869689
11a151514a48
12476a012a75
13233a31a441
1412294d065b
1594ca2a15e
hex5902f8479

23893869689 has 8 divisors (see below), whose sum is σ = 24722472000. Its totient is φ = 23065579152.

The previous prime is 23893869679. The next prime is 23893869757. The reversal of 23893869689 is 98696839832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23893869689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23893869679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83702 + ... + 234080.

It is an arithmetic number, because the mean of its divisors is an integer number (3090309000).

Almost surely, 223893869689 is an apocalyptic number.

23893869689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23893869689 is a deficient number, since it is larger than the sum of its proper divisors (828602311).

23893869689 is a wasteful number, since it uses less digits than its factorization.

23893869689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155887.

The product of its digits is 241864704, while the sum is 71.

The spelling of 23893869689 in words is "twenty-three billion, eight hundred ninety-three million, eight hundred sixty-nine thousand, six hundred eighty-nine".

Divisors: 1 29 5479 150379 158891 4360991 823926541 23893869689