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189125099620 = 22517702779159
BaseRepresentation
bin1011000000100010111…
…1000000000001100100
3200002011110020111200021
42300020233000001210
511044312011141440
6222514411124524
716443460552042
oct2601057000144
9602143214607
10189125099620
1173231208626
12307a1743744
1314ab02b5992
149221a97392
154dbd89684a
hex2c08bc0064

189125099620 has 48 divisors (see below), whose sum is σ = 420590378880. Its totient is φ = 71189005824.

The previous prime is 189125099551. The next prime is 189125099629. The reversal of 189125099620 is 26990521981.

It is not an unprimeable number, because it can be changed into a prime (189125099629) 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, 2349601 + ... + 2428759.

It is an arithmetic number, because the mean of its divisors is an integer number (8762299560).

Almost surely, 2189125099620 is an apocalyptic number.

189125099620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189125099620 is an abundant number, since it is smaller than the sum of its proper divisors (231465279260).

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

189125099620 is a wasteful number, since it uses less digits than its factorization.

189125099620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86212 (or 86210 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 189125099620 in words is "one hundred eighty-nine billion, one hundred twenty-five million, ninety-nine thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 7027 14054 28108 35135 70270 79159 119459 140540 158318 238918 316636 395795 477836 597295 791590 1194590 1345703 1583180 2389180 2691406 5382812 6728515 13457030 26914060 556250293 1112500586 2225001172 2781251465 5562502930 9456254981 11125005860 18912509962 37825019924 47281274905 94562549810 189125099620