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131341384 = 2316417673
BaseRepresentation
bin1111101010000…
…01110001001000
3100011010211111201
413311001301020
5232110411014
621011033544
73153245326
oct765016110
9304124451
10131341384
11681587a9
1237b9b8b4
13212981c5
141362cd16
15b7e5e74
hex7d41c48

131341384 has 8 divisors (see below), whose sum is σ = 246265110. Its totient is φ = 65670688.

The previous prime is 131341351. The next prime is 131341387. The reversal of 131341384 is 483143131.

It can be written as a sum of positive squares in only one way, i.e., 74338884 + 57002500 = 8622^2 + 7550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×1313413843 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131341387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208829 + ... + 8208844.

Almost surely, 2131341384 is an apocalyptic number.

It is an amenable number.

131341384 is a deficient number, since it is larger than the sum of its proper divisors (114923726).

131341384 is a wasteful number, since it uses less digits than its factorization.

131341384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16417679 (or 16417675 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 131341384 is about 11460.4268681406. The cubic root of 131341384 is about 508.3160969043.

The spelling of 131341384 in words is "one hundred thirty-one million, three hundred forty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16417673 32835346 65670692 131341384