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131128614 = 23219383417
BaseRepresentation
bin1111101000011…
…01110100100110
3100010202000122100
413310031310212
5232032103424
621002312530
73151401111
oct764156446
9303660570
10131128614
1168022961
1237ab8746
13212223c6
14135b5578
15b7a2dc9
hex7d0dd26

131128614 has 24 divisors (see below), whose sum is σ = 299066040. Its totient is φ = 41408928.

The previous prime is 131128609. The next prime is 131128651. The reversal of 131128614 is 416821131.

It is a happy number.

131128614 is a `hidden beast` number, since 1 + 31 + 12 + 8 + 614 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191367 + ... + 192050.

It is an arithmetic number, because the mean of its divisors is an integer number (12461085).

Almost surely, 2131128614 is an apocalyptic number.

131128614 is an abundant number, since it is smaller than the sum of its proper divisors (167937426).

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

131128614 is a wasteful number, since it uses less digits than its factorization.

131128614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383444 (or 383441 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 131128614 is about 11451.1402925648. The cubic root of 131128614 is about 508.0414617822.

Adding to 131128614 its reverse (416821131), we get a palindrome (547949745).

The spelling of 131128614 in words is "one hundred thirty-one million, one hundred twenty-eight thousand, six hundred fourteen".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 383417 766834 1150251 2300502 3450753 6901506 7284923 14569846 21854769 43709538 65564307 131128614