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64163012 = 2219183983
BaseRepresentation
bin1111010011000…
…0110011000100
311110201211002212
43310300303010
5112411204022
610211122552
71406243114
oct364606304
9143654085
1064163012
1133244691
12195a3458
13103a6aa4
148743044
1559763e2
hex3d30cc4

64163012 has 12 divisors (see below), whose sum is σ = 112874496. Its totient is φ = 31913160.

The previous prime is 64162999. The next prime is 64163017. The reversal of 64163012 is 21036146.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (64163017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41228 + ... + 42755.

It is an arithmetic number, because the mean of its divisors is an integer number (9406208).

Almost surely, 264163012 is an apocalyptic number.

It is an amenable number.

64163012 is a deficient number, since it is larger than the sum of its proper divisors (48711484).

64163012 is a wasteful number, since it uses less digits than its factorization.

64163012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84178 (or 84176 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 64163012 is about 8010.1817707216. The cubic root of 64163012 is about 400.3393204061.

Adding to 64163012 its reverse (21036146), we get a palindrome (85199158).

The spelling of 64163012 in words is "sixty-four million, one hundred sixty-three thousand, twelve".

Divisors: 1 2 4 191 382 764 83983 167966 335932 16040753 32081506 64163012