Search a number
-
+
112870913 = 234907431
BaseRepresentation
bin1101011101001…
…00011000000001
321212101102210012
412232210120001
5212343332123
615111114305
72540246501
oct656443001
9255342705
10112870913
1158792651
1231972995
131a4cc02c
1410dc1a01
159d98378
hex6ba4601

112870913 has 4 divisors (see below), whose sum is σ = 117778368. Its totient is φ = 107963460.

The previous prime is 112870897. The next prime is 112870943. The reversal of 112870913 is 319078211.

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.

It is a cyclic number.

It is not a de Polignac number, because 112870913 - 24 = 112870897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112870913.

It is not an unprimeable number, because it can be changed into a prime (112870943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453693 + ... + 2453738.

It is an arithmetic number, because the mean of its divisors is an integer number (29444592).

Almost surely, 2112870913 is an apocalyptic number.

It is an amenable number.

112870913 is a deficient number, since it is larger than the sum of its proper divisors (4907455).

112870913 is an equidigital number, since it uses as much as digits as its factorization.

112870913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907454.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 112870913 is about 10624.0723359736. The cubic root of 112870913 is about 483.2746474394.

The spelling of 112870913 in words is "one hundred twelve million, eight hundred seventy thousand, nine hundred thirteen".

Divisors: 1 23 4907431 112870913