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138472116 = 223671571097
BaseRepresentation
bin10000100000011…
…10101010110100
3100122120010000220
420100032222310
5240422101431
621423534340
73300664536
oct1020165264
9318503026
10138472116
1171189172
123a45a3b0
13228c3a83
1414567856
15c253b96
hex840eab4

138472116 has 48 divisors (see below), whose sum is σ = 330313536. Its totient is φ = 45137664.

The previous prime is 138472097. The next prime is 138472127. The reversal of 138472116 is 611274831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125680 + ... + 126776.

It is an arithmetic number, because the mean of its divisors is an integer number (6881532).

Almost surely, 2138472116 is an apocalyptic number.

It is an amenable number.

138472116 is an abundant number, since it is smaller than the sum of its proper divisors (191841420).

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

138472116 is a wasteful number, since it uses less digits than its factorization.

138472116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1326 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 138472116 is about 11767.4175586660. The cubic root of 138472116 is about 517.3535612168.

The spelling of 138472116 in words is "one hundred thirty-eight million, four hundred seventy-two thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 67 134 157 201 268 314 402 471 628 804 942 1097 1884 2194 3291 4388 6582 10519 13164 21038 31557 42076 63114 73499 126228 146998 172229 220497 293996 344458 440994 516687 688916 881988 1033374 2066748 11539343 23078686 34618029 46157372 69236058 138472116