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131496473 = 1971107911
BaseRepresentation
bin1111101011001…
…11101000011001
3100011102201020202
413311213220121
5232130341343
621014231545
73154462433
oct765475031
9304381222
10131496473
1168254279
12380555b5
1321320984
141366d653
15b826db8
hex7d67a19

131496473 has 16 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 121539600.

The previous prime is 131496461. The next prime is 131496481. The reversal of 131496473 is 374694131.

It is a cyclic number.

It is not a de Polignac number, because 131496473 - 28 = 131496217 is a prime.

It is a super-2 number, since 2×1314964732 = 34582644822879458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131496373) 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, 143888 + ... + 144798.

It is an arithmetic number, because the mean of its divisors is an integer number (8864640).

Almost surely, 2131496473 is an apocalyptic number.

It is an amenable number.

131496473 is a deficient number, since it is larger than the sum of its proper divisors (10337767).

131496473 is a wasteful number, since it uses less digits than its factorization.

131496473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its digits is 54432, while the sum is 38.

The square root of 131496473 is about 11467.1911556405. The cubic root of 131496473 is about 508.5160928328.

The spelling of 131496473 in words is "one hundred thirty-one million, four hundred ninety-six thousand, four hundred seventy-three".

Divisors: 1 19 71 107 911 1349 2033 7597 17309 64681 97477 144343 1228939 1852063 6920867 131496473