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131340540144 = 24311248751023
BaseRepresentation
bin111101001010010000…
…0011001100011110000
3110120000100101201222210
41322110200121203300
54122441134241034
6140200443332120
712326512112442
oct1722440314360
9416010351883
10131340540144
1150779346850
1221555821040
13c501835158
1464dd540492
15363a8b08e9
hex1e948198f0

131340540144 has 40 divisors (see below), whose sum is σ = 370141523712. Its totient is φ = 39800163520.

The previous prime is 131340540101. The next prime is 131340540161. The reversal of 131340540144 is 441045043131.

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, 124374984 + ... + 124376039.

Almost surely, 2131340540144 is an apocalyptic number.

It is an amenable number.

131340540144 is an abundant number, since it is smaller than the sum of its proper divisors (238800983568).

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

131340540144 is a wasteful number, since it uses less digits than its factorization.

131340540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248751045 (or 248751039 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 131340540144 its reverse (441045043131), we get a palindrome (572385583275).

The spelling of 131340540144 in words is "one hundred thirty-one billion, three hundred forty million, five hundred forty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 248751023 497502046 746253069 995004092 1492506138 1990008184 2736261253 2985012276 3980016368 5472522506 5970024552 8208783759 10945045012 11940049104 16417567518 21890090024 32835135036 43780180048 65670270072 131340540144