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131040132 = 22323346867
BaseRepresentation
bin1111100111110…
…00001110000100
3100010120112021020
413303320032010
5232021241012
621000351140
73150552126
oct763701604
9303515236
10131040132
1167a72433
1237a754b0
13211c1052
1413591216
15b786a8c
hex7cf8384

131040132 has 24 divisors (see below), whose sum is σ = 307079136. Its totient is φ = 43491648.

The previous prime is 131040109. The next prime is 131040149. The reversal of 131040132 is 231040131.

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, 20638 + ... + 26229.

It is an arithmetic number, because the mean of its divisors is an integer number (12794964).

Almost surely, 2131040132 is an apocalyptic number.

131040132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131040132 is an abundant number, since it is smaller than the sum of its proper divisors (176039004).

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

131040132 is a wasteful number, since it uses less digits than its factorization.

131040132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47107 (or 47105 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131040132 is about 11447.2761825685. The cubic root of 131040132 is about 507.9271652455.

Adding to 131040132 its reverse (231040131), we get a palindrome (362080263).

Subtracting 131040132 from its reverse (231040131), we obtain a palindrome (99999999).

The spelling of 131040132 in words is "one hundred thirty-one million, forty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 233 466 699 932 1398 2796 46867 93734 140601 187468 281202 562404 10920011 21840022 32760033 43680044 65520066 131040132