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113236201 = 13173131637
BaseRepresentation
bin1101011111111…
…01100011101001
321220001222212101
412233331203221
5212442024301
615123013401
72543330461
oct657754351
9256058771
10113236201
1158a12041
1231b0a261
131a5c9390
1411078ba1
159e1b701
hex6bfd8e9

113236201 has 16 divisors (see below), whose sum is σ = 129611664. Its totient is φ = 98002944.

The previous prime is 113236177. The next prime is 113236223. The reversal of 113236201 is 102632311.

113236201 = 75242 + 75252.

It can be written as a sum of positive squares in 8 ways, for example, as 47610000 + 65626201 = 6900^2 + 8101^2 .

It is not a de Polignac number, because 113236201 - 27 = 113236073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113236241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68355 + ... + 69991.

It is an arithmetic number, because the mean of its divisors is an integer number (8100729).

Almost surely, 2113236201 is an apocalyptic number.

113236201 is the 5321-st decagonal number.

113236201 is the 7525-th centered square number.

It is an amenable number.

113236201 is a deficient number, since it is larger than the sum of its proper divisors (16375463).

113236201 is a wasteful number, since it uses less digits than its factorization.

113236201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

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

The square root of 113236201 is about 10641.2499735698. The cubic root of 113236201 is about 483.7954321273.

Adding to 113236201 its reverse (102632311), we get a palindrome (215868512).

The spelling of 113236201 in words is "one hundred thirteen million, two hundred thirty-six thousand, two hundred one".

Divisors: 1 13 17 221 313 1637 4069 5321 21281 27829 69173 361777 512381 6660953 8710477 113236201