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131114240 = 285102433
BaseRepresentation
bin1111101000010…
…10010100000000
3100010201021220222
413310022110000
5232031123430
621002122212
73151311155
oct764122400
9303637828
10131114240
1168013084
1237ab0368
13212189ba
14135b022c
15b79d9e5
hex7d0a500

131114240 has 36 divisors (see below), whose sum is σ = 314062644. Its totient is φ = 52445184.

The previous prime is 131114233. The next prime is 131114257. The reversal of 131114240 is 42411131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71639296 + 59474944 = 8464^2 + 7712^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49937 + ... + 52496.

Almost surely, 2131114240 is an apocalyptic number.

131114240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131114240 is an abundant number, since it is smaller than the sum of its proper divisors (182948404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131114240 is an equidigital number, since it uses as much as digits as its factorization.

131114240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102454 (or 102440 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 131114240 is about 11450.5126522789. The cubic root of 131114240 is about 508.0228976804.

Adding to 131114240 its reverse (42411131), we get a palindrome (173525371).

It can be divided in two parts, 1311 and 14240, that added together give a palindrome (15551).

The spelling of 131114240 in words is "one hundred thirty-one million, one hundred fourteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 102433 204866 409732 512165 819464 1024330 1638928 2048660 3277856 4097320 6555712 8194640 13111424 16389280 26222848 32778560 65557120 131114240