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68844755 = 572487577
BaseRepresentation
bin1000001101001…
…11110011010011
311210112200020202
410012213303103
5120111013010
610455325415
71464112400
oct406476323
9153480222
1068844755
11359520a1
121b08086b
1311355a55
1492012a7
15609d6a5
hex41a7cd3

68844755 has 24 divisors (see below), whose sum is σ = 96465888. Its totient is φ = 47029248.

The previous prime is 68844751. The next prime is 68844757. The reversal of 68844755 is 55744886.

It is not a de Polignac number, because 68844755 - 22 = 68844751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68844751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119027 + ... + 119603.

It is an arithmetic number, because the mean of its divisors is an integer number (4019412).

Almost surely, 268844755 is an apocalyptic number.

68844755 is a deficient number, since it is larger than the sum of its proper divisors (27621133).

68844755 is a wasteful number, since it uses less digits than its factorization.

68844755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1076 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The square root of 68844755 is about 8297.2739499187. The cubic root of 68844755 is about 409.8487544457.

The spelling of 68844755 in words is "sixty-eight million, eight hundred forty-four thousand, seven hundred fifty-five".

Divisors: 1 5 7 35 49 245 487 577 2435 2885 3409 4039 17045 20195 23863 28273 119315 141365 280999 1404995 1966993 9834965 13768951 68844755