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131316244 = 22151217411
BaseRepresentation
bin1111101001110…
…11101000010100
3100011002120000121
413310323220110
5232104104434
621010321324
73153112123
oct764735024
9304076017
10131316244
1168140924
1237b89244
1321289927
1413623aba
15b7dd7b4
hex7d3ba14

131316244 has 12 divisors (see below), whose sum is σ = 231326368. Its totient is φ = 65223000.

The previous prime is 131316221. The next prime is 131316253. The reversal of 131316244 is 442613131.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108102 + ... + 109309.

Almost surely, 2131316244 is an apocalyptic number.

It is an amenable number.

131316244 is a deficient number, since it is larger than the sum of its proper divisors (100010124).

131316244 is a wasteful number, since it uses less digits than its factorization.

131316244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217566 (or 217564 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 131316244 is about 11459.3299978664. The cubic root of 131316244 is about 508.2836626435.

Adding to 131316244 its reverse (442613131), we get a palindrome (573929375).

The spelling of 131316244 in words is "one hundred thirty-one million, three hundred sixteen thousand, two hundred forty-four".

Divisors: 1 2 4 151 302 604 217411 434822 869644 32829061 65658122 131316244