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113021211 = 3107379929
BaseRepresentation
bin1101011110010…
…01000100011011
321212200001221210
412233021010123
5212413134321
615114234203
72541443622
oct657110433
9255601853
10113021211
1158885566
1231a25963
131a552574
14110206b9
159dc7b76
hex6bc911b

113021211 has 16 divisors (see below), whose sum is σ = 152668800. Its totient is φ = 74366208.

The previous prime is 113021197. The next prime is 113021213. The reversal of 113021211 is 112120311.

It is a de Polignac number, because none of the positive numbers 2k-113021211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113021213) 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, 121195 + ... + 122123.

It is an arithmetic number, because the mean of its divisors is an integer number (9541800).

Almost surely, 2113021211 is an apocalyptic number.

113021211 is a deficient number, since it is larger than the sum of its proper divisors (39647589).

113021211 is a wasteful number, since it uses less digits than its factorization.

113021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 113021211 is about 10631.1434474378. The cubic root of 113021211 is about 483.4890605086.

Adding to 113021211 its reverse (112120311), we get a palindrome (225141522).

The spelling of 113021211 in words is "one hundred thirteen million, twenty-one thousand, two hundred eleven".

Divisors: 1 3 107 321 379 929 1137 2787 40553 99403 121659 298209 352091 1056273 37673737 113021211