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104131560 = 23351366751
BaseRepresentation
bin1100011010011…
…10101111101000
321020221102122110
412031032233220
5203124202220
614155522320
72403050361
oct615165750
9236842573
10104131560
1153863645
122aa593a0
131875c210
14db88b68
15921dbe0
hex634ebe8

104131560 has 64 divisors (see below), whose sum is σ = 336430080. Its totient is φ = 25632000.

The previous prime is 104131553. The next prime is 104131561. The reversal of 104131560 is 65131401.

It is not an unprimeable number, because it can be changed into a prime (104131561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31816 + ... + 34935.

It is an arithmetic number, because the mean of its divisors is an integer number (5256720).

Almost surely, 2104131560 is an apocalyptic number.

104131560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104131560 is an abundant number, since it is smaller than the sum of its proper divisors (232298520).

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

104131560 is a wasteful number, since it uses less digits than its factorization.

104131560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66778 (or 66774 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 104131560 is about 10204.4872482649. The cubic root of 104131560 is about 470.4651498801.

Adding to 104131560 its reverse (65131401), we get a palindrome (169262961).

The spelling of 104131560 in words is "one hundred four million, one hundred thirty-one thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 66751 133502 200253 267004 333755 400506 534008 667510 801012 867763 1001265 1335020 1602024 1735526 2002530 2603289 2670040 3471052 4005060 4338815 5206578 6942104 8010120 8677630 10413156 13016445 17355260 20826312 26032890 34710520 52065780 104131560