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350113981 = 72312717123
BaseRepresentation
bin10100110111100…
…101000010111101
3220101210122002111
4110313211002331
51204112121411
654424054021
711450630320
oct2467450275
9811718074
10350113981
1116a6a28a8
1299304311
13576c6049
14346da7b7
1520b0c721
hex14de50bd

350113981 has 16 divisors (see below), whose sum is σ = 420839424. Its totient is φ = 284773104.

The previous prime is 350113961. The next prime is 350113999. The reversal of 350113981 is 189311053.

It is not a de Polignac number, because 350113981 - 25 = 350113949 is a prime.

It is a super-2 number, since 2×3501139812 = 245159599383336722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350113921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11886 + ... + 29008.

It is an arithmetic number, because the mean of its divisors is an integer number (26302464).

Almost surely, 2350113981 is an apocalyptic number.

It is an amenable number.

350113981 is a deficient number, since it is larger than the sum of its proper divisors (70725443).

350113981 is a wasteful number, since it uses less digits than its factorization.

350113981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17280.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 350113981 is about 18711.3329562594. The cubic root of 350113981 is about 704.8063656804.

The spelling of 350113981 in words is "three hundred fifty million, one hundred thirteen thousand, nine hundred eighty-one".

Divisors: 1 7 23 127 161 889 2921 17123 20447 119861 393829 2174621 2756803 15222347 50016283 350113981