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71917160480452 = 22773238314764801
BaseRepresentation
bin10000010110100010000100…
…110011011011111011000100
3100102122012202120022000020001
4100112202010303123323010
533411242321040333302
6412542142030051044
721101562164603620
oct2026420463337304
9312565676260201
1071917160480452
1120a0799523a861
12809603b649a84
1331189b3a80091
1413a8b483ca180
1584aae50b0787
hex416884cdbec4

71917160480452 has 48 divisors (see below), whose sum is σ = 145865849339392. Its totient is φ = 30386667110400.

The previous prime is 71917160480447. The next prime is 71917160480453. The reversal of 71917160480452 is 25408406171917.

It is a junction number, because it is equal to n+sod(n) for n = 71917160480393 and 71917160480402.

It is not an unprimeable number, because it can be changed into a prime (71917160480453) 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, 2511549 + ... + 12253252.

Almost surely, 271917160480452 is an apocalyptic number.

It is an amenable number.

71917160480452 is an abundant number, since it is smaller than the sum of its proper divisors (73948688858940).

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

71917160480452 is a wasteful number, since it uses less digits than its factorization.

71917160480452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14767268 (or 14767266 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 71917160480452 in words is "seventy-one trillion, nine hundred seventeen billion, one hundred sixty million, four hundred eighty thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 2383 4766 9532 16681 33362 66724 173959 347918 695836 1217713 2435426 4870852 14764801 29529602 59059204 103353607 206707214 413414428 1077830473 2155660946 4311321892 7544813311 15089626622 30179253244 35184520783 70369041566 140738083132 246291645481 492583290962 985166581924 2568470017159 5136940034318 10273880068636 17979290120113 35958580240226 71917160480452