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23869044520 = 235596726113
BaseRepresentation
bin10110001110101101…
…001011011100101000
32021121110211002112221
4112032231023130220
5342340433411040
614544300243424
71503332350036
oct261655133450
967543732487
1023869044520
11a1394a9482
124761840574
1323351379a9
1412260ab556
1594a77474a
hex58eb4b728

23869044520 has 16 divisors (see below), whose sum is σ = 53705350260. Its totient is φ = 9547617792.

The previous prime is 23869044503. The next prime is 23869044523. The reversal of 23869044520 is 2544096832.

It can be written as a sum of positive squares in 2 ways, for example, as 23678438884 + 190605636 = 153878^2 + 13806^2 .

It is not an unprimeable number, because it can be changed into a prime (23869044523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298363017 + ... + 298363096.

Almost surely, 223869044520 is an apocalyptic number.

23869044520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23869044520 is an abundant number, since it is smaller than the sum of its proper divisors (29836305740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23869044520 is a wasteful number, since it uses less digits than its factorization.

23869044520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596726124 (or 596726120 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 23869044520 in words is "twenty-three billion, eight hundred sixty-nine million, forty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 596726113 1193452226 2386904452 2983630565 4773808904 5967261130 11934522260 23869044520