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68100630 = 23513174617
BaseRepresentation
bin1000000111100…
…10001000010110
311202010212111120
410003302020112
5114413210010
610431344410
71454563053
oct403621026
9152125446
1068100630
1135494014
121a982106
1311155140
14908a02a
155ea2e70
hex40f2216

68100630 has 32 divisors (see below), whose sum is σ = 176014944. Its totient is φ = 16763136.

The previous prime is 68100611. The next prime is 68100647. The reversal of 68100630 is 3600186.

It is a self number, because there is not a number n which added to its sum of digits gives 68100630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86919 + ... + 87698.

It is an arithmetic number, because the mean of its divisors is an integer number (5500467).

Almost surely, 268100630 is an apocalyptic number.

68100630 is an abundant number, since it is smaller than the sum of its proper divisors (107914314).

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

68100630 is a wasteful number, since it uses less digits than its factorization.

68100630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174640.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 68100630 is about 8252.3105855269. The cubic root of 68100630 is about 408.3667525982.

The spelling of 68100630 in words is "sixty-eight million, one hundred thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 174617 349234 523851 873085 1047702 1746170 2270021 2619255 4540042 5238510 6810063 11350105 13620126 22700210 34050315 68100630