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73068625188 = 223213156129541
BaseRepresentation
bin100010000001100111…
…0101011110100100100
320222121021111202021100
41010003032223310210
52144121032001223
653322310120100
75164465031526
oct1040316536444
9228537452240
1073068625188
1128a96374649
12121b2650030
136b761089c0
1437723a3a16
151d79c0d043
hex11033abd24

73068625188 has 36 divisors (see below), whose sum is σ = 198909036508. Its totient is φ = 22482653760.

The previous prime is 73068625171. The next prime is 73068625211. The reversal of 73068625188 is 88152686037.

73068625188 is a `hidden beast` number, since 7 + 3 + 0 + 6 + 8 + 625 + 1 + 8 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16406535744 + 56662089444 = 128088^2 + 238038^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78064303 + ... + 78065238.

Almost surely, 273068625188 is an apocalyptic number.

73068625188 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

73068625188 is an abundant number, since it is smaller than the sum of its proper divisors (125840411320).

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

73068625188 is a wasteful number, since it uses less digits than its factorization.

73068625188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156129564 (or 156129559 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 73068625188 in words is "seventy-three billion, sixty-eight million, six hundred twenty-five thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 156129541 312259082 468388623 624518164 936777246 1405165869 1873554492 2029684033 2810331738 4059368066 5620663476 6089052099 8118736132 12178104198 18267156297 24356208396 36534312594 73068625188