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23151363612 = 223131131313329
BaseRepresentation
bin10101100011111011…
…011100011000011100
32012202110101010102120
4111203323130120130
5334403222113422
614345142022540
71446466225626
oct254373343034
965673333376
1023151363612
119900383163
1245a1417a50
13224c547930
141198a4dc16
1590775d45c
hex563edc61c

23151363612 has 48 divisors (see below), whose sum is σ = 58690091040. Its totient is φ = 7060451328.

The previous prime is 23151363577. The next prime is 23151363617. The reversal of 23151363612 is 21636315132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151363617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639037 + ... + 674292.

It is an arithmetic number, because the mean of its divisors is an integer number (1222710230).

Almost surely, 223151363612 is an apocalyptic number.

It is an amenable number.

23151363612 is an abundant number, since it is smaller than the sum of its proper divisors (35538727428).

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

23151363612 is a wasteful number, since it uses less digits than its factorization.

23151363612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313462 (or 1313460 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

Adding to 23151363612 its reverse (21636315132), we get a palindrome (44787678744).

The spelling of 23151363612 in words is "twenty-three billion, one hundred fifty-one million, three hundred sixty-three thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 113 156 226 339 452 678 1356 1469 2938 4407 5876 8814 17628 1313329 2626658 3939987 5253316 7879974 15759948 17073277 34146554 51219831 68293108 102439662 148406177 204879324 296812354 445218531 593624708 890437062 1780874124 1929280301 3858560602 5787840903 7717121204 11575681806 23151363612