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68614288 = 2416725679
BaseRepresentation
bin1000001011011…
…11100010010000
311210002222002221
410011233202100
5120031124123
610450350424
71462132441
oct405574220
9153088087
1068614288
1135804a26
121ab8b414
13112a4b92
1491812c8
15605525d
hex416f890

68614288 has 20 divisors (see below), whose sum is σ = 133741440. Its totient is φ = 34100384.

The previous prime is 68614237. The next prime is 68614291. The reversal of 68614288 is 88241686.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10168 + ... + 15511.

It is an arithmetic number, because the mean of its divisors is an integer number (6687072).

Almost surely, 268614288 is an apocalyptic number.

It is an amenable number.

68614288 is a deficient number, since it is larger than the sum of its proper divisors (65127152).

68614288 is a wasteful number, since it uses less digits than its factorization.

68614288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25854 (or 25848 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 68614288 is about 8283.3741917168. The cubic root of 68614288 is about 409.3909020336.

The spelling of 68614288 in words is "sixty-eight million, six hundred fourteen thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 167 334 668 1336 2672 25679 51358 102716 205432 410864 4288393 8576786 17153572 34307144 68614288