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68253039 = 3264111831
BaseRepresentation
bin1000001000101…
…11010101101111
311202102121120100
410010113111233
5114433044124
610434522143
71456066311
oct404272557
9152377510
1068253039
1135588578
121aa36353
13111a961a
1490c97b1
155ed31c9
hex411756f

68253039 has 12 divisors (see below), whose sum is σ = 98749872. Its totient is φ = 45427200.

The previous prime is 68253023. The next prime is 68253043. The reversal of 68253039 is 93035286.

It is not a de Polignac number, because 68253039 - 24 = 68253023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68252994 and 68253012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68253239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (8229156).

Almost surely, 268253039 is an apocalyptic number.

68253039 is a deficient number, since it is larger than the sum of its proper divisors (30496833).

68253039 is a wasteful number, since it uses less digits than its factorization.

68253039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12478 (or 12475 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 68253039 is about 8261.5397475289. The cubic root of 68253039 is about 408.6711667962.

The spelling of 68253039 in words is "sixty-eight million, two hundred fifty-three thousand, thirty-nine".

Divisors: 1 3 9 641 1923 5769 11831 35493 106479 7583671 22751013 68253039