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68628246 = 2347923879
BaseRepresentation
bin1000001011100…
…10111100010110
311210010200020220
410011302330112
5120032100441
610450535210
71462221231
oct405627426
9153120226
1068628246
1135814465
121ab97506
13112ab33b
149186418
156059466
hex4172f16

68628246 has 16 divisors (see below), whose sum is σ = 137548800. Its totient is φ = 22827368.

The previous prime is 68628227. The next prime is 68628257. The reversal of 68628246 is 64282686.

It is a super-2 number, since 2×686282462 = 9419672298073032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68628198 and 68628207.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 9066 + ... + 14813.

It is an arithmetic number, because the mean of its divisors is an integer number (8596800).

Almost surely, 268628246 is an apocalyptic number.

68628246 is an abundant number, since it is smaller than the sum of its proper divisors (68920554).

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

68628246 is a wasteful number, since it uses less digits than its factorization.

68628246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24363.

The product of its digits is 221184, while the sum is 42.

The square root of 68628246 is about 8284.2166799282. The cubic root of 68628246 is about 409.4186605416.

The spelling of 68628246 in words is "sixty-eight million, six hundred twenty-eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 479 958 1437 2874 23879 47758 71637 143274 11438041 22876082 34314123 68628246