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131120201140 = 22537177189461
BaseRepresentation
bin111101000011101011…
…1110111110110110100
3110112102222210100200221
41322013113313312310
54122013232414030
6140122532544124
712321165214615
oct1720727676664
9415388710627
10131120201140
1150675a318a5
12214b3a82044
13c497ca9346
1464bc185c0c
153626389e7a
hex1e875f7db4

131120201140 has 24 divisors (see below), whose sum is σ = 282794381352. Its totient is φ = 51030564480.

The previous prime is 131120201101. The next prime is 131120201171. The reversal of 131120201140 is 41102021131.

It can be written as a sum of positive squares in 4 ways, for example, as 38311015824 + 92809185316 = 195732^2 + 304646^2 .

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, 88593991 + ... + 88595470.

It is an arithmetic number, because the mean of its divisors is an integer number (11783099223).

Almost surely, 2131120201140 is an apocalyptic number.

131120201140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131120201140 is an abundant number, since it is smaller than the sum of its proper divisors (151674180212).

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

131120201140 is a wasteful number, since it uses less digits than its factorization.

131120201140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177189507 (or 177189505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 131120201140 its reverse (41102021131), we get a palindrome (172222222271).

The spelling of 131120201140 in words is "one hundred thirty-one billion, one hundred twenty million, two hundred one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 177189461 354378922 708757844 885947305 1771894610 3543789220 6556010057 13112020114 26224040228 32780050285 65560100570 131120201140