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112402031 = 722293919
BaseRepresentation
bin1101011001100…
…01111001101111
321211111121121012
412230301321233
5212233331111
615053055435
72533254500
oct654617157
9254447535
10112402031
11584a2345
123178757b
131a3967a1
1410cdcba7
159d0448b
hex6b31e6f

112402031 has 6 divisors (see below), whose sum is σ = 130753440. Its totient is φ = 96344556.

The previous prime is 112402019. The next prime is 112402049. The reversal of 112402031 is 130204211.

It is a de Polignac number, because none of the positive numbers 2k-112402031 is a prime.

It is a super-2 number, since 2×1124020312 = 25268433145849922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112401997 and 112402015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112402091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1146911 + ... + 1147008.

It is an arithmetic number, because the mean of its divisors is an integer number (21792240).

Almost surely, 2112402031 is an apocalyptic number.

112402031 is a deficient number, since it is larger than the sum of its proper divisors (18351409).

112402031 is an equidigital number, since it uses as much as digits as its factorization.

112402031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293933 (or 2293926 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 112402031 is about 10601.9824089648. The cubic root of 112402031 is about 482.6045211922.

Adding to 112402031 its reverse (130204211), we get a palindrome (242606242).

It can be divided in two parts, 11 and 2402031, that added together give a palindrome (2402042).

The spelling of 112402031 in words is "one hundred twelve million, four hundred two thousand, thirty-one".

Divisors: 1 7 49 2293919 16057433 112402031