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68110144 = 264722643
BaseRepresentation
bin1000000111101…
…00011101000000
311202011100112221
410003310131000
5114414011034
610431500424
71454632564
oct403643500
9152140487
1068110144
11354a0183
121a987714
131115957b
14908d6a4
155ea5bb4
hex40f4740

68110144 has 28 divisors (see below), whose sum is σ = 138037824. Its totient is φ = 33329024.

The previous prime is 68110129. The next prime is 68110181. The reversal of 68110144 is 44101186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8314 + ... + 14329.

Almost surely, 268110144 is an apocalyptic number.

68110144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68110144 is an abundant number, since it is smaller than the sum of its proper divisors (69927680).

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

68110144 is a wasteful number, since it uses less digits than its factorization.

68110144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22702 (or 22692 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 68110144 is about 8252.8870100105. The cubic root of 68110144 is about 408.3857686747.

The spelling of 68110144 in words is "sixty-eight million, one hundred ten thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 47 64 94 188 376 752 1504 3008 22643 45286 90572 181144 362288 724576 1064221 1449152 2128442 4256884 8513768 17027536 34055072 68110144