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87940196 = 22471672801
BaseRepresentation
bin1010011110111…
…01110001100100
320010110211021022
411033131301210
5140003041241
612420510312
72115323261
oct517356144
9203424238
1087940196
1145704853
122554b398
13152b0526
14b972268
157ac154b
hex53ddc64

87940196 has 24 divisors (see below), whose sum is σ = 158167296. Its totient is φ = 42761600.

The previous prime is 87940187. The next prime is 87940207. The reversal of 87940196 is 69104978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29996 + ... + 32796.

It is an arithmetic number, because the mean of its divisors is an integer number (6590304).

Almost surely, 287940196 is an apocalyptic number.

It is an amenable number.

87940196 is a deficient number, since it is larger than the sum of its proper divisors (70227100).

87940196 is a wasteful number, since it uses less digits than its factorization.

87940196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3017 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 87940196 is about 9377.6434139927. The cubic root of 87940196 is about 444.6952355033.

The spelling of 87940196 in words is "eighty-seven million, nine hundred forty thousand, one hundred ninety-six".

Divisors: 1 2 4 47 94 167 188 334 668 2801 5602 7849 11204 15698 31396 131647 263294 467767 526588 935534 1871068 21985049 43970098 87940196