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2113132231 = 71877160829
BaseRepresentation
bin111110111110011…
…1101011011000111
312110021020020110201
41331330331123013
513311430212411
6545403431331
7103236220240
oct17574753307
95407206421
102113132231
11994898581
124ab825547
13278a38302
14160907cc7
15c57ad3c1
hex7df3d6c7

2113132231 has 8 divisors (see below), whose sum is σ = 2416309920. Its totient is φ = 1810279968.

The previous prime is 2113132223. The next prime is 2113132243. The reversal of 2113132231 is 1322313112.

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

It is not a de Polignac number, because 2113132231 - 23 = 2113132223 is a prime.

It is a super-2 number, since 2×21131322312 = 8930655651382074722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113132199 and 2113132208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113130231) 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, 67276 + ... + 93553.

It is an arithmetic number, because the mean of its divisors is an integer number (302038740).

Almost surely, 22113132231 is an apocalyptic number.

2113132231 is a deficient number, since it is larger than the sum of its proper divisors (303177689).

2113132231 is a wasteful number, since it uses less digits than its factorization.

2113132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162713.

The product of its digits is 216, while the sum is 19.

The square root of 2113132231 is about 45968.8180291815. The cubic root of 2113132231 is about 1283.2429631235.

Adding to 2113132231 its reverse (1322313112), we get a palindrome (3435445343).

The spelling of 2113132231 in words is "two billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 7 1877 13139 160829 1125803 301876033 2113132231