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1013687691 = 3615539277
BaseRepresentation
bin111100011010111…
…010010110001011
32121122102200002120
4330122322112023
54034001001231
6244330502323
734056126462
oct7432722613
92548380076
101013687691
11480222625
122435949a3
13132020403
14988b19d9
155ded6d96
hex3c6ba58b

1013687691 has 8 divisors (see below), whose sum is σ = 1373740944. Its totient is φ = 664713120.

The previous prime is 1013687687. The next prime is 1013687743. The reversal of 1013687691 is 1967863101.

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

It is not a de Polignac number, because 1013687691 - 22 = 1013687687 is a prime.

It is a super-2 number, since 2×10136876912 = 2055125469769822962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1013687621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2769456 + ... + 2769821.

It is an arithmetic number, because the mean of its divisors is an integer number (171717618).

Almost surely, 21013687691 is an apocalyptic number.

1013687691 is a deficient number, since it is larger than the sum of its proper divisors (360053253).

1013687691 is an equidigital number, since it uses as much as digits as its factorization.

1013687691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539341.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1013687691 is about 31838.4624471723. The cubic root of 1013687691 is about 1004.5419035474.

The spelling of 1013687691 in words is "one billion, thirteen million, six hundred eighty-seven thousand, six hundred ninety-one".

Divisors: 1 3 61 183 5539277 16617831 337895897 1013687691