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3129791579252 = 2213317189868453
BaseRepresentation
bin101101100010110110000…
…111011000010001110100
3102002012112120000122112222
4231202312013120101310
5402234303121014002
610353450103301512
7442056103322552
oct55426607302164
912065476018488
103129791579252
11aa7378831258
124266a8a4a898
131991a448c640
14ab6a882abd2
155662e1381a2
hex2d8b61d8474

3129791579252 has 24 divisors (see below), whose sum is σ = 5917060500456. Its totient is φ = 1439962339968.

The previous prime is 3129791579249. The next prime is 3129791579261. The reversal of 3129791579252 is 2529751979213.

It can be written as a sum of positive squares in 4 ways, for example, as 238853103076 + 2890938476176 = 488726^2 + 1700276^2 .

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, 94917743 + ... + 94950710.

It is an arithmetic number, because the mean of its divisors is an integer number (246544187519).

Almost surely, 23129791579252 is an apocalyptic number.

It is an amenable number.

3129791579252 is a deficient number, since it is larger than the sum of its proper divisors (2787268921204).

3129791579252 is a wasteful number, since it uses less digits than its factorization.

3129791579252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189868787 (or 189868785 counting only the distinct ones).

The product of its digits is 21432600, while the sum is 62.

The spelling of 3129791579252 in words is "three trillion, one hundred twenty-nine billion, seven hundred ninety-one million, five hundred seventy-nine thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 52 317 634 1268 4121 8242 16484 189868453 379736906 759473812 2468289889 4936579778 9873159556 60188299601 120376599202 240753198404 782447894813 1564895789626 3129791579252