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131210332 = 22114172733
BaseRepresentation
bin1111101001000…
…01110001011100
3100010220011201221
413310201301130
5232042212312
621004143124
73152161261
oct764416134
9303804657
10131210332
11680792a0
1237b37aa4
1321250666
14135d7268
15b7bc207
hex7d21c5c

131210332 has 24 divisors (see below), whose sum is σ = 256605552. Its totient is φ = 58185600.

The previous prime is 131210309. The next prime is 131210357. The reversal of 131210332 is 233012131.

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, 34563 + ... + 38170.

It is an arithmetic number, because the mean of its divisors is an integer number (10691898).

Almost surely, 2131210332 is an apocalyptic number.

It is an amenable number.

131210332 is a deficient number, since it is larger than the sum of its proper divisors (125395220).

131210332 is a wasteful number, since it uses less digits than its factorization.

131210332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72789 (or 72787 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131210332 is about 11454.7078531056. The cubic root of 131210332 is about 508.1469752668.

Adding to 131210332 its reverse (233012131), we get a palindrome (364222463).

The spelling of 131210332 in words is "one hundred thirty-one million, two hundred ten thousand, three hundred thirty-two".

Divisors: 1 2 4 11 22 41 44 82 164 451 902 1804 72733 145466 290932 800063 1600126 2982053 3200252 5964106 11928212 32802583 65605166 131210332