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68870586 = 2361188171
BaseRepresentation
bin1000001101011…
…10000110111010
311210120222200110
410012232012322
5120112324321
610500045150
71464250611
oct406560672
9153528613
1068870586
113596a544
121b0937b6
1311364735
14920a878
1560a6176
hex41ae1ba

68870586 has 16 divisors (see below), whose sum is σ = 139999968. Its totient is φ = 22580400.

The previous prime is 68870551. The next prime is 68870591. The reversal of 68870586 is 68507886.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93720 + ... + 94451.

It is an arithmetic number, because the mean of its divisors is an integer number (8749998).

Almost surely, 268870586 is an apocalyptic number.

68870586 is an abundant number, since it is smaller than the sum of its proper divisors (71129382).

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

68870586 is a wasteful number, since it uses less digits than its factorization.

68870586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188237.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 68870586 is about 8298.8303995202. The cubic root of 68870586 is about 409.9000073425.

The spelling of 68870586 in words is "sixty-eight million, eight hundred seventy thousand, five hundred eighty-six".

Divisors: 1 2 3 6 61 122 183 366 188171 376342 564513 1129026 11478431 22956862 34435293 68870586