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31056342 = 2318128597
BaseRepresentation
bin111011001111…
…0000111010110
32011102211021220
41312132013112
530422300332
63025351210
7524655162
oct166360726
964384256
1031056342
11165920a9
12a498506
136584a45
1441a5ca2
152ad6d2c
hex1d9e1d6

31056342 has 16 divisors (see below), whose sum is σ = 62458032. Its totient is φ = 10294560.

The previous prime is 31056341. The next prime is 31056367. The reversal of 31056342 is 24365013.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31056341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13213 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (3903627).

Almost surely, 231056342 is an apocalyptic number.

31056342 is an abundant number, since it is smaller than the sum of its proper divisors (31401690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31056342 is a wasteful number, since it uses less digits than its factorization.

31056342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28783.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 31056342 is about 5572.8217269172. The cubic root of 31056342 is about 314.3282636804.

The spelling of 31056342 in words is "thirty-one million, fifty-six thousand, three hundred forty-two".

Divisors: 1 2 3 6 181 362 543 1086 28597 57194 85791 171582 5176057 10352114 15528171 31056342