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131214313240 = 23513003252277
BaseRepresentation
bin111101000110011111…
…0111000011100011000
3110112200112212202020021
41322030332320130120
54122211331010430
6140140134040224
712323420155123
oct1721476703430
9415615782207
10131214313240
115071407169a
122151b4a9074
13c4b163ab8a
1464ca8833ba
15362e77a07a
hex1e8cfb8718

131214313240 has 32 divisors (see below), whose sum is σ = 295256080080. Its totient is φ = 52481480832.

The previous prime is 131214313229. The next prime is 131214313259. The reversal of 131214313240 is 42313412131.

It is a congruent number.

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, 393982 + ... + 646258.

Almost surely, 2131214313240 is an apocalyptic number.

131214313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131214313240 is an abundant number, since it is smaller than the sum of its proper divisors (164041766840).

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

131214313240 is a wasteful number, since it uses less digits than its factorization.

131214313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265291 (or 265287 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131214313240 its reverse (42313412131), we get a palindrome (173527725371).

The spelling of 131214313240 in words is "one hundred thirty-one billion, two hundred fourteen million, three hundred thirteen thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 13003 26006 52012 65015 104024 130030 252277 260060 504554 520120 1009108 1261385 2018216 2522770 5045540 10091080 3280357831 6560715662 13121431324 16401789155 26242862648 32803578310 65607156620 131214313240