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2113124311 = 19791407811
BaseRepresentation
bin111110111110011…
…1011011111010111
312110021012211121101
41331330323133113
513311424434221
6545403330531
7103236155164
oct17574733727
95407184541
102113124311
11994892631
124ab820a47
13278a3481c
1416090506b
15c57aad91
hex7df3b7d7

2113124311 has 8 divisors (see below), whose sum is σ = 2252499200. Its totient is φ = 1976565240.

The previous prime is 2113124309. The next prime is 2113124317. The reversal of 2113124311 is 1134213112.

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 2113124311 - 21 = 2113124309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113124317) 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, 702405 + ... + 705406.

It is an arithmetic number, because the mean of its divisors is an integer number (281562400).

Almost surely, 22113124311 is an apocalyptic number.

2113124311 is a deficient number, since it is larger than the sum of its proper divisors (139374889).

2113124311 is a wasteful number, since it uses less digits than its factorization.

2113124311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407909.

The product of its digits is 144, while the sum is 19.

The square root of 2113124311 is about 45968.7318837490. The cubic root of 2113124311 is about 1283.2413599273.

Adding to 2113124311 its reverse (1134213112), we get a palindrome (3247337423).

The spelling of 2113124311 in words is "two billion, one hundred thirteen million, one hundred twenty-four thousand, three hundred eleven".

Divisors: 1 19 79 1501 1407811 26748409 111217069 2113124311