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68910888 = 2332871287
BaseRepresentation
bin1000001101101…
…11111100101000
311210200000222010
410012313330220
5120120122023
610500555520
71464506244
oct406677450
9153600863
1068910888
1135997852
121b0b2ba0
1311379b97
14921b424
1560b3093
hex41b7f28

68910888 has 16 divisors (see below), whose sum is σ = 172277280. Its totient is φ = 22970288.

The previous prime is 68910887. The next prime is 68910893. The reversal of 68910888 is 88801986.

It is not an unprimeable number, because it can be changed into a prime (68910887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435620 + ... + 1435667.

It is an arithmetic number, because the mean of its divisors is an integer number (10767330).

Almost surely, 268910888 is an apocalyptic number.

It is an amenable number.

68910888 is an abundant number, since it is smaller than the sum of its proper divisors (103366392).

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

68910888 is a wasteful number, since it uses less digits than its factorization.

68910888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871296 (or 2871292 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 48.

The square root of 68910888 is about 8301.2582178848. The cubic root of 68910888 is about 409.9799474627.

The spelling of 68910888 in words is "sixty-eight million, nine hundred ten thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 2871287 5742574 8613861 11485148 17227722 22970296 34455444 68910888