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23025201020 = 2253137137421
BaseRepresentation
bin10101011100011010…
…001010111101111100
32012102122222101212222
4111130122022331330
5334123422413040
614324433544512
71443404656643
oct253432127574
965378871788
1023025201020
119846142358
124567115138
13222c373a03
141185dac35a
158eb63bbb5
hex55c68af7c

23025201020 has 24 divisors (see below), whose sum is σ = 49912695168. Its totient is φ = 8912980800.

The previous prime is 23025201019. The next prime is 23025201037. The reversal of 23025201020 is 2010252032.

It is a super-2 number, since 2×230252010202 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23025201020.

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, 18568091 + ... + 18569330.

It is an arithmetic number, because the mean of its divisors is an integer number (2079695632).

Almost surely, 223025201020 is an apocalyptic number.

23025201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23025201020 is an abundant number, since it is smaller than the sum of its proper divisors (26887494148).

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

23025201020 is a wasteful number, since it uses less digits than its factorization.

23025201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37137461 (or 37137459 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 23025201020 its reverse (2010252032), we get a palindrome (25035453052).

The spelling of 23025201020 in words is "twenty-three billion, twenty-five million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 37137421 74274842 148549684 185687105 371374210 742748420 1151260051 2302520102 4605040204 5756300255 11512600510 23025201020