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68021466 = 2337615023
BaseRepresentation
bin1000000110111…
…10110011011010
311201222211220120
410003132303122
5114403141331
610425534110
71454113212
oct403366332
9151884816
1068021466
113543a597
121a944336
13111280b6
149069242
155e89796
hex40decda

68021466 has 32 divisors (see below), whose sum is σ = 142038528. Its totient is φ = 21695040.

The previous prime is 68021453. The next prime is 68021489. The reversal of 68021466 is 66412086.

It is a happy 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, 11031 + ... + 16053.

It is an arithmetic number, because the mean of its divisors is an integer number (4438704).

Almost surely, 268021466 is an apocalyptic number.

68021466 is an abundant number, since it is smaller than the sum of its proper divisors (74017062).

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

68021466 is a wasteful number, since it uses less digits than its factorization.

68021466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68021466 is about 8247.5127159647. The cubic root of 68021466 is about 408.2084550890.

The spelling of 68021466 in words is "sixty-eight million, twenty-one thousand, four hundred sixty-six".

Divisors: 1 2 3 6 37 61 74 111 122 183 222 366 2257 4514 5023 6771 10046 13542 15069 30138 185851 306403 371702 557553 612806 919209 1115106 1838418 11336911 22673822 34010733 68021466