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113030233231 = 491230204141
BaseRepresentation
bin110100101000100100…
…0000111110010001111
3101210202021022202220111
41221101020013302033
53322441214430411
6123531514100451
711110665062446
oct1512110076217
9353667282814
10113030233231
1143a326901a3
1219aa571a727
13a874238616
145683819d5d
152e1815e721
hex1a51207c8f

113030233231 has 4 divisors (see below), whose sum is σ = 113260437864. Its totient is φ = 112800028600.

The previous prime is 113030233229. The next prime is 113030233271. The reversal of 113030233231 is 132332030311.

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 113030233231 - 21 = 113030233229 is a prime.

It is a super-2 number, since 2×1130302332312 (a number of 23 digits) contains 22 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 (113030233271) 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 3 ways as a sum of consecutive naturals, for example, 115101580 + ... + 115102561.

It is an arithmetic number, because the mean of its divisors is an integer number (28315109466).

Almost surely, 2113030233231 is an apocalyptic number.

113030233231 is a deficient number, since it is larger than the sum of its proper divisors (230204633).

113030233231 is an equidigital number, since it uses as much as digits as its factorization.

113030233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230204632.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 113030233231 its reverse (132332030311), we get a palindrome (245362263542).

The spelling of 113030233231 in words is "one hundred thirteen billion, thirty million, two hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 491 230204141 113030233231