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64130117 = 223287579
BaseRepresentation
bin1111010010100…
…0110001000101
311110200010222112
43310220301011
5112404130432
610210310405
71406045162
oct364506105
9143603875
1064130117
11332219a7
1219588405
1310394b1c
148735069
15596b7b2
hex3d28c45

64130117 has 4 divisors (see below), whose sum is σ = 64417920. Its totient is φ = 63842316.

The previous prime is 64130113. The next prime is 64130147. The reversal of 64130117 is 71103146.

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 64130117 - 22 = 64130113 is a prime.

It is a super-2 number, since 2×641301172 = 8225343812867378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64130092 and 64130101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64130113) 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, 143567 + ... + 144012.

It is an arithmetic number, because the mean of its divisors is an integer number (16104480).

Almost surely, 264130117 is an apocalyptic number.

It is an amenable number.

64130117 is a deficient number, since it is larger than the sum of its proper divisors (287803).

64130117 is a wasteful number, since it uses less digits than its factorization.

64130117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287802.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 64130117 is about 8008.1281832898. The cubic root of 64130117 is about 400.2708935836.

The spelling of 64130117 in words is "sixty-four million, one hundred thirty thousand, one hundred seventeen".

Divisors: 1 223 287579 64130117