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23125032140 = 2257237181687
BaseRepresentation
bin10101100010010110…
…111111110011001100
32012200121211100102212
4111202112333303030
5334330002012030
614342401405552
71446026346530
oct254226776314
965617740385
1023125032140
119897528a11
1245946398b8
132246c58692
141195357bc0
159052ab595
hex5625bfccc

23125032140 has 48 divisors (see below), whose sum is σ = 57913132032. Its totient is φ = 7583860416.

The previous prime is 23125032127. The next prime is 23125032173. The reversal of 23125032140 is 4123052132.

It is a super-2 number, since 2×231250321402 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3587624 + ... + 3594063.

It is an arithmetic number, because the mean of its divisors is an integer number (1206523584).

Almost surely, 223125032140 is an apocalyptic number.

23125032140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23125032140 is an abundant number, since it is smaller than the sum of its proper divisors (34788099892).

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

23125032140 is a wasteful number, since it uses less digits than its factorization.

23125032140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7181726 (or 7181724 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23125032140 its reverse (4123052132), we get a palindrome (27248084272).

The spelling of 23125032140 in words is "twenty-three billion, one hundred twenty-five million, thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 7181687 14363374 28726748 35908435 50271809 71816870 100543618 143633740 165178801 201087236 251359045 330357602 502718090 660715204 825894005 1005436180 1156251607 1651788010 2312503214 3303576020 4625006428 5781258035 11562516070 23125032140