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140131315 = 531904073
BaseRepresentation
bin10000101101000…
…11101111110011
3100202200102000201
420112203233303
5241333200230
621523300031
73321045052
oct1026435763
9322612021
10140131315
1172111805
123ab1a617
132305504c
141487a399
15c4805ca
hex85a3bf3

140131315 has 8 divisors (see below), whose sum is σ = 173582208. Its totient is φ = 108488640.

The previous prime is 140131297. The next prime is 140131337. The reversal of 140131315 is 513131041.

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-140131315 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140131292 and 140131301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451882 + ... + 452191.

It is an arithmetic number, because the mean of its divisors is an integer number (21697776).

Almost surely, 2140131315 is an apocalyptic number.

140131315 is a deficient number, since it is larger than the sum of its proper divisors (33450893).

140131315 is an equidigital number, since it uses as much as digits as its factorization.

140131315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904109.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 140131315 is about 11837.7073371494. The cubic root of 140131315 is about 519.4117052541.

Adding to 140131315 its reverse (513131041), we get a palindrome (653262356).

The spelling of 140131315 in words is "one hundred forty million, one hundred thirty-one thousand, three hundred fifteen".

Divisors: 1 5 31 155 904073 4520365 28026263 140131315