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71814098454 = 2372156292
BaseRepresentation
bin100001011100001110…
…1000010111000010110
320212100211220012010020
41002320131002320112
52134033402122304
652554013210010
75121422523300
oct1027035027026
9225324805106
1071814098454
112850220609a
1211b02490906
136a062328a7
14369391c970
151d04a015d9
hex10b8742e16

71814098454 has 36 divisors (see below), whose sum is σ = 167088389364. Its totient is φ = 20517001008.

The previous prime is 71814098413. The next prime is 71814098501. The reversal of 71814098454 is 45489041817.

It is a junction number, because it is equal to n+sod(n) for n = 71814098397 and 71814098406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4587112 + ... + 4602740.

It is an arithmetic number, because the mean of its divisors is an integer number (4641344149).

Almost surely, 271814098454 is an apocalyptic number.

71814098454 is an abundant number, since it is smaller than the sum of its proper divisors (95274290910).

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

71814098454 is an frugal number, since it uses more digits than its factorization.

71814098454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31277 (or 15641 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 71814098454 in words is "seventy-one billion, eight hundred fourteen million, ninety-eight thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 15629 31258 46887 93774 109403 218806 328209 656418 765821 1531642 2297463 4594926 244265641 488531282 732796923 1465593846 1709859487 3419718974 5129578461 10259156922 11969016409 23938032818 35907049227 71814098454