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23899886485 = 56481737537
BaseRepresentation
bin10110010000100010…
…110101001110010101
32021200121212000202221
4112100202311032111
5342421332331420
614551321302341
71504155453226
oct262042651625
967617760687
1023899886485
11a154954502
1247700349b1
13233b645c87
14122a21924d
1594d317caa
hex5908b5395

23899886485 has 8 divisors (see below), whose sum is σ = 28684327896. Its totient is φ = 19116933120.

The previous prime is 23899886467. The next prime is 23899886579. The reversal of 23899886485 is 58468899832.

It can be written as a sum of positive squares in 4 ways, for example, as 2380756849 + 21519129636 = 48793^2 + 146694^2 .

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

It is not a de Polignac number, because 23899886485 - 25 = 23899886453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336364 + ... + 401173.

It is an arithmetic number, because the mean of its divisors is an integer number (3585540987).

Almost surely, 223899886485 is an apocalyptic number.

It is an amenable number.

23899886485 is a deficient number, since it is larger than the sum of its proper divisors (4784441411).

23899886485 is an equidigital number, since it uses as much as digits as its factorization.

23899886485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744023.

The product of its digits is 238878720, while the sum is 70.

The spelling of 23899886485 in words is "twenty-three billion, eight hundred ninety-nine million, eight hundred eighty-six thousand, four hundred eighty-five".

Divisors: 1 5 6481 32405 737537 3687685 4779977297 23899886485