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320103131 = 2966116699
BaseRepresentation
bin10011000101000…
…110001011011011
3211022022220221112
4103011012023123
51123421300011
651432530535
710634555165
oct2305061333
9738286845
10320103131
11154765247
128b250a4b
135141914a
1430727935
151d18058b
hex131462db

320103131 has 8 divisors (see below), whose sum is σ = 331662000. Its totient is φ = 308579040.

The previous prime is 320103101. The next prime is 320103193. The reversal of 320103131 is 131301023.

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 320103131 - 214 = 320086747 is a prime.

It is a super-2 number, since 2×3201031312 = 204932028952006322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320103101) 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, 10820 + ... + 27518.

It is an arithmetic number, because the mean of its divisors is an integer number (41457750).

Almost surely, 2320103131 is an apocalyptic number.

320103131 is a deficient number, since it is larger than the sum of its proper divisors (11558869).

320103131 is a wasteful number, since it uses less digits than its factorization.

320103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 320103131 is about 17891.4261868639. The cubic root of 320103131 is about 684.0638505822.

Adding to 320103131 its reverse (131301023), we get a palindrome (451404154).

The spelling of 320103131 in words is "three hundred twenty million, one hundred three thousand, one hundred thirty-one".

Divisors: 1 29 661 16699 19169 484271 11038039 320103131