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72012116708 = 22723111820057
BaseRepresentation
bin100001100010001000…
…0011011001011100100
320212212122111120002122
41003010100123023210
52134440100213313
653025405325112
75126345615060
oct1030420331344
9225778446078
1072012116708
11285a3a65144
1211b58866798
136a38274b5c
1436b1d46aa0
151d170b8708
hex10c441b2e4

72012116708 has 24 divisors (see below), whose sum is σ = 150286157952. Its totient is φ = 29520494784.

The previous prime is 72012116681. The next prime is 72012116711. The reversal of 72012116708 is 80761121027.

It is a super-2 number, since 2×720121167082 (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 7 ways as a sum of consecutive naturals, for example, 55909385 + ... + 55910672.

It is an arithmetic number, because the mean of its divisors is an integer number (6261923248).

Almost surely, 272012116708 is an apocalyptic number.

It is an amenable number.

72012116708 is an abundant number, since it is smaller than the sum of its proper divisors (78274041244).

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

72012116708 is a wasteful number, since it uses less digits than its factorization.

72012116708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111820091 (or 111820089 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 72012116708 in words is "seventy-two billion, twelve million, one hundred sixteen thousand, seven hundred eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 111820057 223640114 447280228 782740399 1565480798 2571861311 3130961596 5143722622 10287445244 18003029177 36006058354 72012116708