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68851023 = 389257869
BaseRepresentation
bin1000001101010…
…01010101001111
311210112222211220
410012221111033
5120111213043
610455414423
71464136563
oct406512517
9153488756
1068851023
113595687a
121b084413
1311358867
1492036a3
1560a0483
hex41a954f

68851023 has 8 divisors (see below), whose sum is σ = 92833200. Its totient is φ = 45384768.

The previous prime is 68851021. The next prime is 68851051. The reversal of 68851023 is 32015886.

It is a happy number.

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

It is not a de Polignac number, because 68851023 - 21 = 68851021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68851021) 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, 128668 + ... + 129201.

It is an arithmetic number, because the mean of its divisors is an integer number (11604150).

Almost surely, 268851023 is an apocalyptic number.

68851023 is a deficient number, since it is larger than the sum of its proper divisors (23982177).

68851023 is a wasteful number, since it uses less digits than its factorization.

68851023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257961.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 68851023 is about 8297.6516557397. The cubic root of 68851023 is about 409.8611923529.

The spelling of 68851023 in words is "sixty-eight million, eight hundred fifty-one thousand, twenty-three".

Divisors: 1 3 89 267 257869 773607 22950341 68851023