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104389860 = 223517531931
BaseRepresentation
bin1100011100011…
…01110011100100
321021102112222010
412032031303210
5203210433420
614205234220
72405204421
oct616156344
9237375863
10104389860
1153a1a713
122ab62970
131881c963
14dc14d48
1592704e0
hex638dce4

104389860 has 96 divisors (see below), whose sum is σ = 315487872. Its totient is φ = 25692160.

The previous prime is 104389841. The next prime is 104389861. The reversal of 104389860 is 68983401.

It is not an unprimeable number, because it can be changed into a prime (104389861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53095 + ... + 55025.

It is an arithmetic number, because the mean of its divisors is an integer number (3286332).

Almost surely, 2104389860 is an apocalyptic number.

104389860 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 104389860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157743936).

104389860 is an abundant number, since it is smaller than the sum of its proper divisors (211098012).

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

104389860 is a wasteful number, since it uses less digits than its factorization.

104389860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 104389860 is about 10217.1356064212. The cubic root of 104389860 is about 470.8538274596.

The spelling of 104389860 in words is "one hundred four million, three hundred eighty-nine thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 53 60 68 85 102 106 159 170 204 212 255 265 318 340 510 530 636 795 901 1020 1060 1590 1802 1931 2703 3180 3604 3862 4505 5406 5793 7724 9010 9655 10812 11586 13515 18020 19310 23172 27030 28965 32827 38620 54060 57930 65654 98481 102343 115860 131308 164135 196962 204686 307029 328270 393924 409372 492405 511715 614058 656540 984810 1023430 1228116 1535145 1739831 1969620 2046860 3070290 3479662 5219493 6140580 6959324 8699155 10438986 17398310 20877972 26097465 34796620 52194930 104389860