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131254103 = 433052421
BaseRepresentation
bin1111101001011…
…00011101010111
3100010222101210002
413310230131113
5232100112403
621005121515
73152433011
oct764543527
9303871702
10131254103
11680a9172
1237b5929b
1321267566
14136091b1
15b7ca188
hex7d2c757

131254103 has 4 divisors (see below), whose sum is σ = 134306568. Its totient is φ = 128201640.

The previous prime is 131254099. The next prime is 131254111. The reversal of 131254103 is 301452131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301452131 = 417352491.

It is a cyclic number.

It is not a de Polignac number, because 131254103 - 22 = 131254099 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 (131254003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526168 + ... + 1526253.

It is an arithmetic number, because the mean of its divisors is an integer number (33576642).

Almost surely, 2131254103 is an apocalyptic number.

131254103 is a deficient number, since it is larger than the sum of its proper divisors (3052465).

131254103 is an equidigital number, since it uses as much as digits as its factorization.

131254103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052464.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131254103 is about 11456.6183055909. The cubic root of 131254103 is about 508.2034739386.

The spelling of 131254103 in words is "one hundred thirty-one million, two hundred fifty-four thousand, one hundred three".

Divisors: 1 43 3052421 131254103