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68951982 = 23111044727
BaseRepresentation
bin1000001110000…
…01111110101110
311210202010100010
410013001332232
5120122430412
610501514050
71465040121
oct407017656
9153663303
1068951982
1135a15710
121b112926
13113927b8
14922c3b8
1560c033c
hex41c1fae

68951982 has 16 divisors (see below), whose sum is σ = 150440832. Its totient is φ = 20894520.

The previous prime is 68951957. The next prime is 68952019. The reversal of 68951982 is 28915986.

It is a happy number.

It is a congruent number.

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, 522298 + ... + 522429.

It is an arithmetic number, because the mean of its divisors is an integer number (9402552).

Almost surely, 268951982 is an apocalyptic number.

68951982 is an abundant number, since it is smaller than the sum of its proper divisors (81488850).

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

68951982 is a wasteful number, since it uses less digits than its factorization.

68951982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044743.

The product of its digits is 311040, while the sum is 48.

The square root of 68951982 is about 8303.7330159393. The cubic root of 68951982 is about 410.0614264500.

The spelling of 68951982 in words is "sixty-eight million, nine hundred fifty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 11 22 33 66 1044727 2089454 3134181 6268362 11491997 22983994 34475991 68951982