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215425152560 = 2455350807819
BaseRepresentation
bin1100100010100001010…
…1101111011000110000
3202121001100102121212002
43020220111233120300
512012142314340220
6242544232353132
721364302404162
oct3105025573060
9677040377762
10215425152560
11833a7978672
12359015457a8
1317411c75297
14a5d8976932
15590c769c75
hex322856f630

215425152560 has 40 divisors (see below), whose sum is σ = 510313744080. Its totient is φ = 84544209152.

The previous prime is 215425152493. The next prime is 215425152571. The reversal of 215425152560 is 65251524512.

215425152560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25399670 + ... + 25408149.

It is an arithmetic number, because the mean of its divisors is an integer number (12757843602).

Almost surely, 2215425152560 is an apocalyptic number.

215425152560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215425152560 is an abundant number, since it is smaller than the sum of its proper divisors (294888591520).

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

215425152560 is a wasteful number, since it uses less digits than its factorization.

215425152560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50807885 (or 50807879 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 215425152560 in words is "two hundred fifteen billion, four hundred twenty-five million, one hundred fifty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 50807819 101615638 203231276 254039095 406462552 508078190 812925104 1016156380 2032312760 2692814407 4064625520 5385628814 10771257628 13464072035 21542515256 26928144070 43085030512 53856288140 107712576280 215425152560