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64001077 = 79143011
BaseRepresentation
bin1111010000100…
…1010000110101
311110102120222021
43310021100311
5112341013302
610203433141
71405000030
oct364112065
9143376867
1064001077
1133143a58
12195257b1
131034b17a
148700017
155943437
hex3d09435

64001077 has 4 divisors (see below), whose sum is σ = 73144096. Its totient is φ = 54858060.

The previous prime is 64001059. The next prime is 64001089. The reversal of 64001077 is 77010046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64001077 - 219 = 63476789 is a prime.

It is a super-2 number, since 2×640010772 = 8192275714319858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64001477) 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, 4571499 + ... + 4571512.

It is an arithmetic number, because the mean of its divisors is an integer number (18286024).

Almost surely, 264001077 is an apocalyptic number.

It is an amenable number.

64001077 is a deficient number, since it is larger than the sum of its proper divisors (9143019).

64001077 is an equidigital number, since it uses as much as digits as its factorization.

64001077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143018.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 64001077 is about 8000.0673122168. The cubic root of 64001077 is about 400.0022437374.

The spelling of 64001077 in words is "sixty-four million, one thousand, seventy-seven".

Divisors: 1 7 9143011 64001077