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113231201 = 1011121101
BaseRepresentation
bin1101011111111…
…00010101100001
321220001202000012
412233330111201
5212441344301
615122534305
72543310056
oct657742541
9256052005
10113231201
1158a09306
1231b07395
131a5c7015
141107702d
159e19ebb
hex6bfc561

113231201 has 4 divisors (see below), whose sum is σ = 114352404. Its totient is φ = 112110000.

The previous prime is 113231197. The next prime is 113231219. The reversal of 113231201 is 102132311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62094400 + 51136801 = 7880^2 + 7151^2 .

It is not a de Polignac number, because 113231201 - 22 = 113231197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113231221) 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, 560450 + ... + 560651.

It is an arithmetic number, because the mean of its divisors is an integer number (28588101).

Almost surely, 2113231201 is an apocalyptic number.

It is an amenable number.

113231201 is a deficient number, since it is larger than the sum of its proper divisors (1121203).

113231201 is a wasteful number, since it uses less digits than its factorization.

113231201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121202.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113231201 is about 10641.0150361702. The cubic root of 113231201 is about 483.7883112810.

Adding to 113231201 its reverse (102132311), we get a palindrome (215363512).

The spelling of 113231201 in words is "one hundred thirteen million, two hundred thirty-one thousand, two hundred one".

Divisors: 1 101 1121101 113231201