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64072966 = 2177192621
BaseRepresentation
bin1111010001101…
…0110100000110
311110120020120211
43310122310012
5112400313331
610205150034
71405416436
oct364326406
9143506524
1064072966
1133192a71
121955b31a
1310374ac9
14871c2c6
1559598b1
hex3d1ad06

64072966 has 16 divisors (see below), whose sum is σ = 101943360. Its totient is φ = 30098560.

The previous prime is 64072961. The next prime is 64072973. The reversal of 64072966 is 66927046.

64072966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64072961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23136 + ... + 25756.

It is an arithmetic number, because the mean of its divisors is an integer number (6371460).

Almost surely, 264072966 is an apocalyptic number.

64072966 is a deficient number, since it is larger than the sum of its proper divisors (37870394).

64072966 is a wasteful number, since it uses less digits than its factorization.

64072966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 64072966 is about 8004.5590759267. The cubic root of 64072966 is about 400.1519547671.

The spelling of 64072966 in words is "sixty-four million, seventy-two thousand, nine hundred sixty-six".

Divisors: 1 2 17 34 719 1438 2621 5242 12223 24446 44557 89114 1884499 3768998 32036483 64072966