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111272113 = 1923161163
BaseRepresentation
bin1101010000111…
…10000010110001
321202101012122101
412220132002301
5211441201423
615012540401
72520540331
oct650360261
9252335571
10111272113
11578a0427
1231321701
131a08c3b4
1410ac70c1
159b7e7ad
hex6a1e0b1

111272113 has 24 divisors (see below), whose sum is σ = 123968256. Its totient is φ = 99727200.

The previous prime is 111272111. The next prime is 111272153. The reversal of 111272113 is 311272111.

It is not a de Polignac number, because 111272113 - 21 = 111272111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (111272111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 682570 + ... + 682732.

It is an arithmetic number, because the mean of its divisors is an integer number (5165344).

Almost surely, 2111272113 is an apocalyptic number.

It is an amenable number.

111272113 is a deficient number, since it is larger than the sum of its proper divisors (12696143).

111272113 is a wasteful number, since it uses less digits than its factorization.

111272113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 274 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 111272113 is about 10548.5597595122. The cubic root of 111272113 is about 480.9819496081.

The spelling of 111272113 in words is "one hundred eleven million, two hundred seventy-two thousand, one hundred thirteen".

Divisors: 1 19 31 61 163 361 589 1159 1891 3097 5053 9943 11191 22021 35929 58843 96007 188917 308233 682651 1824133 3589423 5856427 111272113