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87505000902 = 232111051420499
BaseRepresentation
bin101000101111110110…
…1000101100111000110
322100212101002121210100
41101133231011213012
52413202240012102
6104111011504530
76215312143464
oct1213755054706
9270771077710
1087505000902
1134124323370
1214b612b8146
138336c54157
1443417cd834
1524222dca1c
hex145fb459c6

87505000902 has 48 divisors (see below), whose sum is σ = 207027288000. Its totient is φ = 26491374000.

The previous prime is 87505000901. The next prime is 87505000943. The reversal of 87505000902 is 20900050578.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87505000901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2152 + ... + 418347.

It is an arithmetic number, because the mean of its divisors is an integer number (4313068500).

Almost surely, 287505000902 is an apocalyptic number.

87505000902 is an abundant number, since it is smaller than the sum of its proper divisors (119522287098).

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

87505000902 is a wasteful number, since it uses less digits than its factorization.

87505000902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421569 (or 421566 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 87505000902 in words is "eighty-seven billion, five hundred five million, nine hundred two", and thus it is an aban number.

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 1051 2102 3153 6306 9459 11561 18918 23122 34683 69366 104049 208098 420499 840998 1261497 2522994 3784491 4625489 7568982 9250978 13876467 27752934 41629401 83258802 441944449 883888898 1325833347 2651666694 3977500041 4861388939 7955000082 9722777878 14584166817 29168333634 43752500451 87505000902