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31741393 = 137443523
BaseRepresentation
bin111100100010…
…1010111010001
32012201122000011
41321011113101
531111211033
63052154521
7533540335
oct171052721
965648004
1031741393
1116a0a862
12a768a41
1367647b8
1443037c5
152bbeccd
hex1e455d1

31741393 has 8 divisors (see below), whose sum is σ = 32106528. Its totient is φ = 31378464.

The previous prime is 31741373. The next prime is 31741429. The reversal of 31741393 is 39314713.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31741393 - 213 = 31733201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31741373) 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 7 ways as a sum of consecutive naturals, for example, 60430 + ... + 60952.

It is an arithmetic number, because the mean of its divisors is an integer number (4013316).

Almost surely, 231741393 is an apocalyptic number.

It is an amenable number.

31741393 is a deficient number, since it is larger than the sum of its proper divisors (365135).

31741393 is a wasteful number, since it uses less digits than its factorization.

31741393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its digits is 6804, while the sum is 31.

The square root of 31741393 is about 5633.9500352772. The cubic root of 31741393 is about 316.6226606747.

The spelling of 31741393 in words is "thirty-one million, seven hundred forty-one thousand, three hundred ninety-three".

Divisors: 1 137 443 523 60691 71651 231689 31741393