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2115115339 = 4151588179
BaseRepresentation
bin111111000010010…
…0001100101001011
312110101221222210011
41332010201211023
513312432142324
6545514132351
7103262120011
oct17604414513
95411858704
102115115339
11995a22507
124b04210b7
13279280b4c
14160ca28b1
15c5a50c94
hex7e12194b

2115115339 has 4 divisors (see below), whose sum is σ = 2166703560. Its totient is φ = 2063527120.

The previous prime is 2115115313. The next prime is 2115115411. The reversal of 2115115339 is 9335115112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115115339 - 25 = 2115115307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115115339.

It is not an unprimeable number, because it can be changed into a prime (2115115039) 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, 25794049 + ... + 25794130.

It is an arithmetic number, because the mean of its divisors is an integer number (541675890).

Almost surely, 22115115339 is an apocalyptic number.

2115115339 is a deficient number, since it is larger than the sum of its proper divisors (51588221).

2115115339 is an equidigital number, since it uses as much as digits as its factorization.

2115115339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51588220.

The product of its digits is 4050, while the sum is 31.

The square root of 2115115339 is about 45990.3831142990. The cubic root of 2115115339 is about 1283.6442653057.

The spelling of 2115115339 in words is "two billion, one hundred fifteen million, one hundred fifteen thousand, three hundred thirty-nine".

Divisors: 1 41 51588179 2115115339