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71272869140 = 225111261925673
BaseRepresentation
bin100001001100000110…
…0011010110100010100
320210222010110220002002
41002120030122310110
52131431323303030
652424200534432
75102131251254
oct1023014326424
9223863426062
1071272869140
1128254749540
1211991181418
13694b073565
143641ab3964
151cc2242245
hex109831ad14

71272869140 has 48 divisors (see below), whose sum is σ = 163298963520. Its totient is φ = 25914343680.

The previous prime is 71272869137. The next prime is 71272869149. The reversal of 71272869140 is 4196827217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71272869149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2763344 + ... + 2789016.

It is an arithmetic number, because the mean of its divisors is an integer number (3402061740).

Almost surely, 271272869140 is an apocalyptic number.

It is an amenable number.

71272869140 is an abundant number, since it is smaller than the sum of its proper divisors (92026094380).

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

71272869140 is a wasteful number, since it uses less digits than its factorization.

71272869140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38312 (or 38310 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 71272869140 in words is "seventy-one billion, two hundred seventy-two million, eight hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 12619 25238 25673 50476 51346 63095 102692 126190 128365 138809 252380 256730 277618 282403 513460 555236 564806 694045 1129612 1388090 1412015 2776180 2824030 5648060 323967587 647935174 1295870348 1619837935 3239675870 3563643457 6479351740 7127286914 14254573828 17818217285 35636434570 71272869140