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72434225068 = 2228211641897
BaseRepresentation
bin100001101110101101…
…0101000111110101100
320220222001202212220121
41003131122220332230
52141321130200233
653135324454324
75142662516512
oct1033532507654
9226861685817
1072434225068
11287a0260427
12120560aa3a4
136aa485740a
1437120244b2
151d3e19792d
hex10dd6a8fac

72434225068 has 12 divisors (see below), whose sum is σ = 126764584632. Its totient is φ = 36215772320.

The previous prime is 72434225053. The next prime is 72434225077. The reversal of 72434225068 is 86052243427.

It is a super-2 number, since 2×724342250682 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208105 + ... + 433792.

It is an arithmetic number, because the mean of its divisors is an integer number (10563715386).

Almost surely, 272434225068 is an apocalyptic number.

It is an amenable number.

72434225068 is a deficient number, since it is larger than the sum of its proper divisors (54330359564).

72434225068 is a wasteful number, since it uses less digits than its factorization.

72434225068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670112 (or 670110 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 72434225068 in words is "seventy-two billion, four hundred thirty-four million, two hundred twenty-five thousand, sixty-eight".

Divisors: 1 2 4 28211 56422 112844 641897 1283794 2567588 18108556267 36217112534 72434225068