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139240160 = 25523157241
BaseRepresentation
bin10000100110010…
…10001011100000
3100201000010120222
420103022023200
5241121141120
621452222212
73310343663
oct1023121340
9321003528
10139240160
1171663214
123a76a968
1322b02537
14146c76da
15c356525
hex84ca2e0

139240160 has 96 divisors (see below), whose sum is σ = 346876992. Its totient is φ = 52715520.

The previous prime is 139240147. The next prime is 139240193. The reversal of 139240160 is 61042931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577640 + ... + 577880.

It is an arithmetic number, because the mean of its divisors is an integer number (3613302).

Almost surely, 2139240160 is an apocalyptic number.

139240160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139240160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173438496).

139240160 is an abundant number, since it is smaller than the sum of its proper divisors (207636832).

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

139240160 is a wasteful number, since it uses less digits than its factorization.

139240160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 139240160 is about 11800.0067796591. The cubic root of 139240160 is about 518.3083091784.

It can be divided in two parts, 139240 and 160, that multiplied together give a square (22278400 = 47202).

The spelling of 139240160 in words is "one hundred thirty-nine million, two hundred forty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 157 160 184 230 241 314 368 460 482 628 736 785 920 964 1205 1256 1570 1840 1928 2410 2512 3140 3611 3680 3856 4820 5024 5543 6280 7222 7712 9640 11086 12560 14444 18055 19280 22172 25120 27715 28888 36110 37837 38560 44344 55430 57776 72220 75674 88688 110860 115552 144440 151348 177376 189185 221720 288880 302696 378370 443440 577760 605392 756740 870251 886880 1210784 1513480 1740502 3026960 3481004 4351255 6053920 6962008 8702510 13924016 17405020 27848032 34810040 69620080 139240160