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131314405 = 527196911
BaseRepresentation
bin1111101001110…
…11001011100101
3100011002110111111
413310323023211
5232104030110
621010305021
73153103555
oct764731345
9304073444
10131314405
116813a502
1237b88171
1321288b41
1413623165
15b7dce8a
hex7d3b2e5

131314405 has 8 divisors (see below), whose sum is σ = 158160384. Its totient is φ = 104662800.

The previous prime is 131314399. The next prime is 131314411. The reversal of 131314405 is 504413131.

It is an interprime number because it is at equal distance from previous prime (131314399) and next prime (131314411).

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

It is a de Polignac number, because none of the positive numbers 2k-131314405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47101 + ... + 49810.

It is an arithmetic number, because the mean of its divisors is an integer number (19770048).

Almost surely, 2131314405 is an apocalyptic number.

It is an amenable number.

131314405 is a deficient number, since it is larger than the sum of its proper divisors (26845979).

131314405 is an equidigital number, since it uses as much as digits as its factorization.

131314405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97187.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 131314405 is about 11459.2497572921. The cubic root of 131314405 is about 508.2812899032.

Adding to 131314405 its reverse (504413131), we get a palindrome (635727536).

The spelling of 131314405 in words is "one hundred thirty-one million, three hundred fourteen thousand, four hundred five".

Divisors: 1 5 271 1355 96911 484555 26262881 131314405