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139111882 = 2731319821
BaseRepresentation
bin10000100101010…
…10110111001010
3100200202121121221
420102222313022
5241103040012
621445352254
73306301000
oct1022526712
9320677557
10139111882
11715858a8
123a70868a
1322a89030
1414692a70
15c32d507
hex84aadca

139111882 has 64 divisors (see below), whose sum is σ = 276192000. Its totient is φ = 52073280.

The previous prime is 139111879. The next prime is 139111883. The reversal of 139111882 is 288111931.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (139111883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169032 + ... + 169852.

It is an arithmetic number, because the mean of its divisors is an integer number (4315500).

Almost surely, 2139111882 is an apocalyptic number.

139111882 is a deficient number, since it is larger than the sum of its proper divisors (137080118).

139111882 is a wasteful number, since it uses less digits than its factorization.

139111882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 862 counting only the distinct ones).

The product of its digits is 3456, while the sum is 34.

The square root of 139111882 is about 11794.5700218363. The cubic root of 139111882 is about 518.1490927056.

The spelling of 139111882 in words is "one hundred thirty-nine million, one hundred eleven thousand, eight hundred eighty-two".

Divisors: 1 2 7 13 14 19 26 38 49 91 98 133 182 247 266 343 494 637 686 821 931 1274 1642 1729 1862 3458 4459 5747 6517 8918 10673 11494 12103 13034 15599 21346 24206 31198 40229 74711 80458 84721 109193 149422 169442 202787 218386 281603 405574 522977 563206 764351 1045954 1419509 1528702 2839018 3660839 5350457 7321678 9936563 10700914 19873126 69555941 139111882