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1064913797 = 1223870739
BaseRepresentation
bin111111011110010…
…100101110000101
32202012211020002202
4333132110232011
54140104220142
6253400444245
735250421643
oct7736245605
92665736082
101064913797
114a7130552
12258779685
1313c81790c
14a1608193
1563755032
hex3f794b85

1064913797 has 4 divisors (see below), whose sum is σ = 1065785760. Its totient is φ = 1064041836.

The previous prime is 1064913763. The next prime is 1064913893. The reversal of 1064913797 is 7973194601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7973194601 = 41194468161.

It is a cyclic number.

It is not a de Polignac number, because 1064913797 - 210 = 1064912773 is a prime.

It is a super-2 number, since 2×10649137972 = 2268082790081914418, 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 (1064913757) 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, 434147 + ... + 436592.

It is an arithmetic number, because the mean of its divisors is an integer number (266446440).

Almost surely, 21064913797 is an apocalyptic number.

It is an amenable number.

1064913797 is a deficient number, since it is larger than the sum of its proper divisors (871963).

1064913797 is an equidigital number, since it uses as much as digits as its factorization.

1064913797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871962.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 1064913797 is about 32633.0169766756. The cubic root of 1064913797 is about 1021.1859194326.

The spelling of 1064913797 in words is "one billion, sixty-four million, nine hundred thirteen thousand, seven hundred ninety-seven".

Divisors: 1 1223 870739 1064913797