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72319934860 = 22516829214867
BaseRepresentation
bin100001101011010011…
…0101010000110001100
320220200002201100012221
41003112212222012030
52141102400403420
653120123105124
75140104206065
oct1032646520614
9226602640187
1072319934860
1128741799508
12120239721a4
136a86c7c384
143700b9356c
151d3411dcaa
hex10d69aa18c

72319934860 has 24 divisors (see below), whose sum is σ = 151881594480. Its totient is φ = 28926120384.

The previous prime is 72319934857. The next prime is 72319934879. The reversal of 72319934860 is 6843991327.

It is a junction number, because it is equal to n+sod(n) for n = 72319934798 and 72319934807.

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, 229147 + ... + 444013.

It is an arithmetic number, because the mean of its divisors is an integer number (6328399770).

Almost surely, 272319934860 is an apocalyptic number.

It is an amenable number.

72319934860 is an abundant number, since it is smaller than the sum of its proper divisors (79561659620).

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

72319934860 is a wasteful number, since it uses less digits than its factorization.

72319934860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231705 (or 231703 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 72319934860 in words is "seventy-two billion, three hundred nineteen million, nine hundred thirty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 16829 33658 67316 84145 168290 214867 336580 429734 859468 1074335 2148670 4297340 3615996743 7231993486 14463986972 18079983715 36159967430 72319934860