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131313022 = 2139472349
BaseRepresentation
bin1111101001110…
…10110101111110
3100011002101121021
413310322311332
5232104004042
621010254354
73153066541
oct764726576
9304071537
10131313022
1168139465
1237b873ba
1321288319
1413622858
15b7dc867
hex7d3ad7e

131313022 has 8 divisors (see below), whose sum is σ = 198387000. Its totient is φ = 65184024.

The previous prime is 131313001. The next prime is 131313031. The reversal of 131313022 is 220313131.

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

It is a junction number, because it is equal to n+sod(n) for n = 131312987 and 131313005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235897 + ... + 236452.

It is an arithmetic number, because the mean of its divisors is an integer number (24798375).

Almost surely, 2131313022 is an apocalyptic number.

131313022 is a deficient number, since it is larger than the sum of its proper divisors (67073978).

131313022 is a wasteful number, since it uses less digits than its factorization.

131313022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472490.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131313022 is about 11459.1894128686. The cubic root of 131313022 is about 508.2795054950.

Adding to 131313022 its reverse (220313131), we get a palindrome (351626153).

The spelling of 131313022 in words is "one hundred thirty-one million, three hundred thirteen thousand, twenty-two".

Divisors: 1 2 139 278 472349 944698 65656511 131313022