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112520197 = 607185371
BaseRepresentation
bin1101011010011…
…10110000000101
321211201121200201
412231032300011
5212301121242
615055410501
72534256136
oct655166005
9254647621
10112520197
11585730a9
1231823a31
131a4084ca
1410d2dc8d
159d294b7
hex6b4ec05

112520197 has 4 divisors (see below), whose sum is σ = 112706176. Its totient is φ = 112334220.

The previous prime is 112520183. The next prime is 112520231. The reversal of 112520197 is 791025211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791025211 = 2729289859.

It is a cyclic number.

It is not a de Polignac number, because 112520197 - 211 = 112518149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112520137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92079 + ... + 93292.

It is an arithmetic number, because the mean of its divisors is an integer number (28176544).

Almost surely, 2112520197 is an apocalyptic number.

It is an amenable number.

112520197 is a deficient number, since it is larger than the sum of its proper divisors (185979).

112520197 is an equidigital number, since it uses as much as digits as its factorization.

112520197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185978.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 112520197 is about 10607.5537707805. The cubic root of 112520197 is about 482.7735794469.

The spelling of 112520197 in words is "one hundred twelve million, five hundred twenty thousand, one hundred ninety-seven".

Divisors: 1 607 185371 112520197