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350521157 = 7214095077
BaseRepresentation
bin10100111001001…
…000011101000101
3220102120022122002
4110321020131011
51204213134112
654440515045
711454244400
oct2471103505
9812508562
10350521157
1116a950808
129947ba85
135780948c
14347a4d37
1520b8d1c2
hex14e48745

350521157 has 12 divisors (see below), whose sum is σ = 408118860. Its totient is φ = 300174336.

The previous prime is 350521151. The next prime is 350521163. The reversal of 350521157 is 751125053.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (350521151) and next prime (350521163).

It can be written as a sum of positive squares in 2 ways, for example, as 165533956 + 184987201 = 12866^2 + 13601^2 .

It is not a de Polignac number, because 350521157 - 226 = 283412293 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 (350521151) 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 11 ways as a sum of consecutive naturals, for example, 66503 + ... + 71579.

It is an arithmetic number, because the mean of its divisors is an integer number (34009905).

Almost surely, 2350521157 is an apocalyptic number.

It is an amenable number.

350521157 is a deficient number, since it is larger than the sum of its proper divisors (57597703).

350521157 is a wasteful number, since it uses less digits than its factorization.

350521157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6493 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 350521157 is about 18722.2102594752. The cubic root of 350521157 is about 705.0794853626.

The spelling of 350521157 in words is "three hundred fifty million, five hundred twenty-one thousand, one hundred fifty-seven".

Divisors: 1 7 49 1409 5077 9863 35539 69041 248773 7153493 50074451 350521157