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130331132 = 2232582783
BaseRepresentation
bin1111100010010…
…11000111111100
3100002020111200222
413301023013330
5231331044012
620533240512
73141540101
oct761130774
9302214628
10130331132
1167628788
1237793138
1321003419
1413448aa8
15b696972
hex7c4b1fc

130331132 has 6 divisors (see below), whose sum is σ = 228079488. Its totient is φ = 65165564.

The previous prime is 130331111. The next prime is 130331137. The reversal of 130331132 is 231133031.

It is a self number, because there is not a number n which added to its sum of digits gives 130331132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130331137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16291388 + ... + 16291395.

It is an arithmetic number, because the mean of its divisors is an integer number (38013248).

Almost surely, 2130331132 is an apocalyptic number.

It is an amenable number.

130331132 is a deficient number, since it is larger than the sum of its proper divisors (97748356).

130331132 is a wasteful number, since it uses less digits than its factorization.

130331132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582787 (or 32582785 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 130331132 is about 11416.2661146278. The cubic root of 130331132 is about 507.0094519775.

Adding to 130331132 its reverse (231133031), we get a palindrome (361464163).

The spelling of 130331132 in words is "one hundred thirty million, three hundred thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 32582783 65165566 130331132