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6930072613 = 128922812357
BaseRepresentation
bin1100111010001000…
…01000010000100101
3122212222011011110001
412131010020100211
5103143044310423
63103355301301
7333506434222
oct63504102045
918788134401
106930072613
112a36933142
121414a4a831
138659914a9
1449a556949
152a8604cad
hex19d108425

6930072613 has 8 divisors (see below), whose sum is σ = 6941433240. Its totient is φ = 6918723840.

The previous prime is 6930072577. The next prime is 6930072619. The reversal of 6930072613 is 3162700396.

It can be written as a sum of positive squares in 4 ways, for example, as 1253655649 + 5676416964 = 35407^2 + 75342^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6930072613 - 29 = 6930072101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930072619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939031 + ... + 2941387.

It is an arithmetic number, because the mean of its divisors is an integer number (867679155).

Almost surely, 26930072613 is an apocalyptic number.

It is an amenable number.

6930072613 is a deficient number, since it is larger than the sum of its proper divisors (11360627).

6930072613 is a wasteful number, since it uses less digits than its factorization.

6930072613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5927.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 6930072613 is about 83247.0576837404. The cubic root of 6930072613 is about 1906.5400307348.

The spelling of 6930072613 in words is "six billion, nine hundred thirty million, seventy-two thousand, six hundred thirteen".

Divisors: 1 1289 2281 2357 2940209 3038173 5376317 6930072613