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87214357930 = 2571245919399
BaseRepresentation
bin101000100111001100…
…0010111110110101010
322100010010012102120211
41101032120113312222
52412103333423210
6104022110211334
76205152545050
oct1211630276652
9270103172524
1087214357930
1133a9525aa67
1214a9bab3b4a
1382bb98136b
144314d741d0
152406a2b38a
hex144e617daa

87214357930 has 16 divisors (see below), whose sum is σ = 179412393600. Its totient is φ = 29902065552.

The previous prime is 87214357927. The next prime is 87214357957. The reversal of 87214357930 is 3975341278.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622959630 + ... + 622959769.

It is an arithmetic number, because the mean of its divisors is an integer number (11213274600).

Almost surely, 287214357930 is an apocalyptic number.

87214357930 is an abundant number, since it is smaller than the sum of its proper divisors (92198035670).

87214357930 is a wasteful number, since it uses less digits than its factorization.

87214357930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245919413.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 87214357930 in words is "eighty-seven billion, two hundred fourteen million, three hundred fifty-seven thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1245919399 2491838798 6229596995 8721435793 12459193990 17442871586 43607178965 87214357930