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139310157 = 3724472711
BaseRepresentation
bin10000100110110…
…11010001001101
3100201010200121110
420103123101031
5241130411112
621453522233
73311055030
oct1023332115
9321120543
10139310157
1171700868
123a7a3379
1322b2835c
1414705017
15c36c13c
hex84db44d

139310157 has 16 divisors (see below), whose sum is σ = 212447232. Its totient is φ = 79543920.

The previous prime is 139310141. The next prime is 139310161. The reversal of 139310157 is 751013931.

It is a happy number.

It is not a de Polignac number, because 139310157 - 24 = 139310141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139310117) 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 15 ways as a sum of consecutive naturals, for example, 50032 + ... + 52742.

It is an arithmetic number, because the mean of its divisors is an integer number (13277952).

Almost surely, 2139310157 is an apocalyptic number.

It is an amenable number.

139310157 is a deficient number, since it is larger than the sum of its proper divisors (73137075).

139310157 is a wasteful number, since it uses less digits than its factorization.

139310157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 139310157 is about 11802.9723798711. The cubic root of 139310157 is about 518.3951470299.

The spelling of 139310157 in words is "one hundred thirty-nine million, three hundred ten thousand, one hundred fifty-seven".

Divisors: 1 3 7 21 2447 2711 7341 8133 17129 18977 51387 56931 6633817 19901451 46436719 139310157