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6193979113 = 72126407737
BaseRepresentation
bin1011100010011000…
…01001111011101001
3120222200001201222211
411301030021323221
5100141124312423
62502342245121
7306330645100
oct56114117351
916880051884
106193979113
112699381203
12124a4267a1
137793256ca
1442a8a5037
15263ba310d
hex171309ee9

6193979113 has 6 divisors (see below), whose sum is σ = 7205241066. Its totient is φ = 5309124912.

The previous prime is 6193979111. The next prime is 6193979131. The reversal of 6193979113 is 3119793916.

It can be written as a sum of positive squares in only one way, i.e., 3507837529 + 2686141584 = 59227^2 + 51828^2 .

It is not a de Polignac number, because 6193979113 - 21 = 6193979111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 126407737 = 6193979113 / (6 + 1 + 9 + 3 + 9 + 7 + 9 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6193979111) 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 5 ways as a sum of consecutive naturals, for example, 63203820 + ... + 63203917.

It is an arithmetic number, because the mean of its divisors is an integer number (1200873511).

Almost surely, 26193979113 is an apocalyptic number.

It is an amenable number.

6193979113 is a deficient number, since it is larger than the sum of its proper divisors (1011261953).

6193979113 is a wasteful number, since it uses less digits than its factorization.

6193979113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126407751 (or 126407744 counting only the distinct ones).

The product of its digits is 275562, while the sum is 49.

The square root of 6193979113 is about 78701.8367828858. The cubic root of 6193979113 is about 1836.4956845841.

The spelling of 6193979113 in words is "six billion, one hundred ninety-three million, nine hundred seventy-nine thousand, one hundred thirteen".

Divisors: 1 7 49 126407737 884854159 6193979113