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68611626 = 23217224221
BaseRepresentation
bin1000001011011…
…10111000101010
311210002211110100
410011232320222
5120031033001
610450330230
71462121616
oct405567052
9153084410
1068611626
1135802a26
121ab89976
13112a38c5
149180346
156054586
hex416ee2a

68611626 has 24 divisors (see below), whose sum is σ = 157403844. Its totient is φ = 21525120.

The previous prime is 68611619. The next prime is 68611637. The reversal of 68611626 is 62611686.

It can be written as a sum of positive squares in 2 ways, for example, as 68310225 + 301401 = 8265^2 + 549^2 .

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 11 ways as a sum of consecutive naturals, for example, 111805 + ... + 112416.

Almost surely, 268611626 is an apocalyptic number.

68611626 is an abundant number, since it is smaller than the sum of its proper divisors (88792218).

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

68611626 is a wasteful number, since it uses less digits than its factorization.

68611626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224246 (or 224243 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 68611626 is about 8283.2135068462. The cubic root of 68611626 is about 409.3856076423.

The spelling of 68611626 in words is "sixty-eight million, six hundred eleven thousand, six hundred twenty-six".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 224221 448442 672663 1345326 2017989 3811757 4035978 7623514 11435271 22870542 34305813 68611626