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131321414 = 279380101
BaseRepresentation
bin1111101001111…
…00111001000110
3100011002211010002
413310330321012
5232104241124
621010401302
73153133160
oct764747106
9304084102
10131321414
11681447a4
1237b90232
132128c0a3
1413625930
15b7e00ae
hex7d3ce46

131321414 has 8 divisors (see below), whose sum is σ = 225122448. Its totient is φ = 56280600.

The previous prime is 131321389. The next prime is 131321417. The reversal of 131321414 is 414123131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321417) 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, 4690037 + ... + 4690064.

It is an arithmetic number, because the mean of its divisors is an integer number (28140306).

Almost surely, 2131321414 is an apocalyptic number.

131321414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131321414 is a deficient number, since it is larger than the sum of its proper divisors (93801034).

131321414 is an equidigital number, since it uses as much as digits as its factorization.

131321414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380110.

The product of its digits is 288, while the sum is 20.

The square root of 131321414 is about 11459.5555760248. Note that the first 4 decimals coincide. The cubic root of 131321414 is about 508.2903330344.

Adding to 131321414 its reverse (414123131), we get a palindrome (545444545).

The spelling of 131321414 in words is "one hundred thirty-one million, three hundred twenty-one thousand, four hundred fourteen".

Divisors: 1 2 7 14 9380101 18760202 65660707 131321414