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23133011020 = 22571031604231
BaseRepresentation
bin10101100010110101…
…011011110001001100
32012201011211201101221
4111202311123301030
5334334022323040
614343244413124
71446154230550
oct254265336114
965634751357
1023133011020
1198a0a88629
1245972471a4
1322487c0302
141196433860
15905d3574a
hex562d5bc4c

23133011020 has 48 divisors (see below), whose sum is σ = 56058283008. Its totient is φ = 7854310080.

The previous prime is 23133011017. The next prime is 23133011059. The reversal of 23133011020 is 2011033132.

It is a junction number, because it is equal to n+sod(n) for n = 23133010985 and 23133011003.

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, 787696 + ... + 816535.

It is an arithmetic number, because the mean of its divisors is an integer number (1167880896).

Almost surely, 223133011020 is an apocalyptic number.

23133011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133011020 is an abundant number, since it is smaller than the sum of its proper divisors (32925271988).

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

23133011020 is a wasteful number, since it uses less digits than its factorization.

23133011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604350 (or 1604348 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23133011020 its reverse (2011033132), we get a palindrome (25144044152).

The spelling of 23133011020 in words is "twenty-three billion, one hundred thirty-three million, eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 103 140 206 412 515 721 1030 1442 2060 2884 3605 7210 14420 1604231 3208462 6416924 8021155 11229617 16042310 22459234 32084620 44918468 56148085 112296170 165235793 224592340 330471586 660943172 826178965 1156650551 1652357930 2313301102 3304715860 4626602204 5783252755 11566505510 23133011020