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23252004990 = 2345142320173
BaseRepresentation
bin10101101001111011…
…010111000001111110
32020000110202020110000
4111221323113001332
5340110003124430
614403135055130
71452130532004
oct255173270176
966013666400
1023252004990
119952172555
12460b0714a6
132267354346
1411a816aa74
159114dce60
hex569ed707e

23252004990 has 80 divisors (see below), whose sum is σ = 62569096128. Its totient is φ = 6195870144.

The previous prime is 23252004989. The next prime is 23252005001. The reversal of 23252004990 is 9940025232.

23252004990 is a `hidden beast` number, since 2 + 3 + 2 + 520 + 0 + 49 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1142544 + ... + 1162716.

Almost surely, 223252004990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23252004990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31284548064).

23252004990 is an abundant number, since it is smaller than the sum of its proper divisors (39317091138).

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

23252004990 is a wasteful number, since it uses less digits than its factorization.

23252004990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21615 (or 21606 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 23252004990 in words is "twenty-three billion, two hundred fifty-two million, four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 1423 2846 4269 7115 8538 12807 14230 20173 21345 25614 38421 40346 42690 60519 64035 76842 100865 115263 121038 128070 181557 192105 201730 230526 302595 363114 384210 544671 576315 605190 907785 1089342 1152630 1634013 1815570 2723355 3268026 5446710 8170065 16340130 28706179 57412358 86118537 143530895 172237074 258355611 287061790 430592685 516711222 775066833 861185370 1291778055 1550133666 2325200499 2583556110 3875334165 4650400998 7750668330 11626002495 23252004990