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139160142 = 232111971521
BaseRepresentation
bin10000100101101…
…10101001001110
3100200212001211100
420102312221032
5241111111032
621450403530
73306561462
oct1022665116
9320761740
10139160142
1171609090
123a7305a6
1322aa4ca4
14146a64a2
15c33c97c
hex84b6a4e

139160142 has 96 divisors (see below), whose sum is σ = 351786240. Its totient is φ = 39312000.

The previous prime is 139160111. The next prime is 139160167. The reversal of 139160142 is 241061931.

139160142 is a `hidden beast` number, since 13 + 9 + 1 + 601 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 266842 + ... + 267362.

It is an arithmetic number, because the mean of its divisors is an integer number (3664440).

Almost surely, 2139160142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139160142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175893120).

139160142 is an abundant number, since it is smaller than the sum of its proper divisors (212626098).

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

139160142 is a wasteful number, since it uses less digits than its factorization.

139160142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139160142 is about 11796.6157011238. The cubic root of 139160142 is about 518.2090036774.

The spelling of 139160142 in words is "one hundred thirty-nine million, one hundred sixty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 11 18 19 22 33 38 57 66 71 99 114 142 171 198 209 213 342 418 426 521 627 639 781 1042 1254 1278 1349 1562 1563 1881 2343 2698 3126 3762 4047 4686 4689 5731 7029 8094 9378 9899 11462 12141 14058 14839 17193 19798 24282 29678 29697 34386 36991 44517 51579 59394 73982 89034 89091 103158 108889 110973 133551 178182 217778 221946 267102 326667 332919 406901 653334 665838 702829 813802 980001 1220703 1405658 1960002 2108487 2441406 3662109 4216974 6325461 7324218 7731119 12650922 15462238 23193357 46386714 69580071 139160142