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64013161 = 891036983
BaseRepresentation
bin1111010000110…
…0001101101001
311110110012112211
43310030031221
5112341410121
610204005121
71405050202
oct364141551
9143405484
1064013161
1133152043
12195307a1
1310353814
1487045a9
155946ce1
hex3d0c369

64013161 has 8 divisors (see below), whose sum is σ = 65370240. Its totient is φ = 62670432.

The previous prime is 64013149. The next prime is 64013221. The reversal of 64013161 is 16131046.

It is a happy number.

64013161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64013161 - 25 = 64013129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64013101) 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, 5676 + ... + 12658.

It is an arithmetic number, because the mean of its divisors is an integer number (8171280).

Almost surely, 264013161 is an apocalyptic number.

It is an amenable number.

64013161 is a deficient number, since it is larger than the sum of its proper divisors (1357079).

64013161 is a wasteful number, since it uses less digits than its factorization.

64013161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 64013161 is about 8000.8225202163. The cubic root of 64013161 is about 400.0274168707.

The spelling of 64013161 in words is "sixty-four million, thirteen thousand, one hundred sixty-one".

Divisors: 1 89 103 6983 9167 621487 719249 64013161