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139080 = 23351961
BaseRepresentation
bin100001111101001000
321001210010
4201331020
513422310
62551520
71116324
oct417510
9231703
10139080
1195547
12685a0
134b3c6
1438984
152b320
hex21f48

139080 has 64 divisors (see below), whose sum is σ = 446400. Its totient is φ = 34560.

The previous prime is 139079. The next prime is 139091. The reversal of 139080 is 80931.

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, 2250 + ... + 2310.

It is an arithmetic number, because the mean of its divisors is an integer number (6975).

2139080 is an apocalyptic number.

139080 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 139080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223200).

139080 is an abundant number, since it is smaller than the sum of its proper divisors (307320).

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

139080 is a wasteful number, since it uses less digits than its factorization.

139080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 139080 is about 372.9343105696. The cubic root of 139080 is about 51.8109506124.

The spelling of 139080 in words is "one hundred thirty-nine thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 61 76 95 114 120 122 152 183 190 228 244 285 305 366 380 456 488 570 610 732 760 915 1140 1159 1220 1464 1830 2280 2318 2440 3477 3660 4636 5795 6954 7320 9272 11590 13908 17385 23180 27816 34770 46360 69540 139080