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64130516 = 2239194091
BaseRepresentation
bin1111010010100…
…0110111010100
311110200011112022
43310220313110
5112404134031
610210312312
71406046302
oct364506724
9143604468
1064130516
113322222a
1219588698
1310395068
148735272
15596b97b
hex3d28dd4

64130516 has 12 divisors (see below), whose sum is σ = 112284480. Its totient is φ = 32049240.

The previous prime is 64130497. The next prime is 64130533. The reversal of 64130516 is 61503146.

It is a super-2 number, since 2×641305162 = 8225446164852512, which contains 22 as substring.

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, 13631 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (9357040).

Almost surely, 264130516 is an apocalyptic number.

It is an amenable number.

64130516 is a deficient number, since it is larger than the sum of its proper divisors (48153964).

64130516 is a wasteful number, since it uses less digits than its factorization.

64130516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8014 (or 8012 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 64130516 is about 8008.1530954397. The cubic root of 64130516 is about 400.2717237071.

It can be divided in two parts, 64130 and 516, that added together give a palindrome (64646).

The spelling of 64130516 in words is "sixty-four million, one hundred thirty thousand, five hundred sixteen".

Divisors: 1 2 4 3919 4091 7838 8182 15676 16364 16032629 32065258 64130516