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68996653 = 1112135171
BaseRepresentation
bin1000001110011…
…00111000101101
311210211101121121
410013030320231
5120130343103
610502500541
71465314265
oct407147055
9153741547
1068996653
1135a46230
121b134751
13113a9c2b
1492407a5
1560cd6bd
hex41cce2d

68996653 has 8 divisors (see below), whose sum is σ = 75345696. Its totient is φ = 62660400.

The previous prime is 68996647. The next prime is 68996701. The reversal of 68996653 is 35669986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-68996653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68996653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68996953) by changing a digit.

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, 10758 + ... + 15928.

It is an arithmetic number, because the mean of its divisors is an integer number (9418212).

Almost surely, 268996653 is an apocalyptic number.

It is an amenable number.

68996653 is a deficient number, since it is larger than the sum of its proper divisors (6349043).

68996653 is a wasteful number, since it uses less digits than its factorization.

68996653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395.

The product of its digits is 2099520, while the sum is 52.

The square root of 68996653 is about 8306.4223947497. The cubic root of 68996653 is about 410.1499610074.

The spelling of 68996653 in words is "sixty-eight million, nine hundred ninety-six thousand, six hundred fifty-three".

Divisors: 1 11 1213 5171 13343 56881 6272423 68996653