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131354501 = 449292549
BaseRepresentation
bin1111101010001…
…00111110000101
3100011011111111112
413311010332011
5232111321001
621011214405
73153331505
oct765047605
9304144445
10131354501
1168167643
1237ba7405
13212a1175
1413633a05
15b7e9cbb
hex7d44f85

131354501 has 4 divisors (see below), whose sum is σ = 131647500. Its totient is φ = 131061504.

The previous prime is 131354479. The next prime is 131354567. The reversal of 131354501 is 105453131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70123876 + 61230625 = 8374^2 + 7825^2 .

It is a cyclic number.

It is not a de Polignac number, because 131354501 - 26 = 131354437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131354401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145826 + ... + 146723.

It is an arithmetic number, because the mean of its divisors is an integer number (32911875).

Almost surely, 2131354501 is an apocalyptic number.

It is an amenable number.

131354501 is a deficient number, since it is larger than the sum of its proper divisors (292999).

131354501 is an equidigital number, since it uses as much as digits as its factorization.

131354501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292998.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 131354501 is about 11460.9991274758. Note that the first 3 decimals coincide. The cubic root of 131354501 is about 508.3330181013. Note that the first 3 decimals are identical.

The spelling of 131354501 in words is "one hundred thirty-one million, three hundred fifty-four thousand, five hundred one".

Divisors: 1 449 292549 131354501