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64112836 = 2231677717
BaseRepresentation
bin1111010010010…
…0100011000100
311110122021021111
43310210203010
5112403102321
610210054404
71405643614
oct364444304
9143567244
1064112836
113320aa17
121957a404
1310389cb8
14872ca44
1559665e1
hex3d248c4

64112836 has 24 divisors (see below), whose sum is σ = 117560576. Its totient is φ = 30555360.

The previous prime is 64112833. The next prime is 64112843. The reversal of 64112836 is 63821146.

It is a happy number.

It is a super-2 number, since 2×641128362 = 8220911479925792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 64112798 and 64112807.

It is not an unprimeable number, because it can be changed into a prime (64112833) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4450 + ... + 12166.

Almost surely, 264112836 is an apocalyptic number.

It is an amenable number.

64112836 is a deficient number, since it is larger than the sum of its proper divisors (53447740).

64112836 is a wasteful number, since it uses less digits than its factorization.

64112836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819 (or 7817 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 64112836 is about 8007.0491443477. The cubic root of 64112836 is about 400.2349369845.

The spelling of 64112836 in words is "sixty-four million, one hundred twelve thousand, eight hundred thirty-six".

Divisors: 1 2 4 31 62 67 124 134 268 2077 4154 7717 8308 15434 30868 239227 478454 517039 956908 1034078 2068156 16028209 32056418 64112836