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2113231343 = 31471450399
BaseRepresentation
bin111110111110101…
…0101100111101111
312110021102021102112
41331331111213233
513311441400333
6545405514235
7103240112216
oct17575254757
95407367375
102113231343
11994955a93
124ab87297b
13278a71462
1416093207d
15c57cc948
hex7df559ef

2113231343 has 8 divisors (see below), whose sum is σ = 2227814400. Its totient is φ = 2001549240.

The previous prime is 2113231333. The next prime is 2113231349. The reversal of 2113231343 is 3431323112.

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 2113231343 - 226 = 2046122479 is a prime.

It is a super-3 number, since 3×21132313433 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113231349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723743 + ... + 726656.

It is an arithmetic number, because the mean of its divisors is an integer number (278476800).

Almost surely, 22113231343 is an apocalyptic number.

2113231343 is a deficient number, since it is larger than the sum of its proper divisors (114583057).

2113231343 is a wasteful number, since it uses less digits than its factorization.

2113231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450477.

The product of its digits is 1296, while the sum is 23.

The square root of 2113231343 is about 45969.8960516554. The cubic root of 2113231343 is about 1283.2630254093.

Adding to 2113231343 its reverse (3431323112), we get a palindrome (5544554455).

The spelling of 2113231343 in words is "two billion, one hundred thirteen million, two hundred thirty-one thousand, three hundred forty-three".

Divisors: 1 31 47 1457 1450399 44962369 68168753 2113231343