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131836768 = 2571789389
BaseRepresentation
bin1111101101110…
…10101101100000
3100012002000001021
413312322231200
5232222234033
621025415224
73160410520
oct766725540
9305060037
10131836768
1168466a08
123819a514
132140c82b
141371b680
15b892b2d
hex7dbab60

131836768 has 96 divisors (see below), whose sum is σ = 318427200. Its totient is φ = 52445184.

The previous prime is 131836729. The next prime is 131836787. The reversal of 131836768 is 867638131.

Its product of digits (145152) is a multiple of the sum of its prime divisors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338718 + ... + 339106.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2131836768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131836768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159213600).

131836768 is an abundant number, since it is smaller than the sum of its proper divisors (186590432).

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

131836768 is a wasteful number, since it uses less digits than its factorization.

131836768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 504 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 131836768 is about 11482.0193345944. The cubic root of 131836768 is about 508.9543718258.

The spelling of 131836768 in words is "one hundred thirty-one million, eight hundred thirty-six thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 89 112 119 136 178 224 238 272 356 389 476 544 623 712 778 952 1246 1424 1513 1556 1904 2492 2723 2848 3026 3112 3808 4984 5446 6052 6224 6613 9968 10591 10892 12104 12448 13226 19936 21182 21784 24208 26452 34621 42364 43568 46291 48416 52904 69242 84728 87136 92582 105808 138484 169456 185164 211616 242347 276968 338912 370328 484694 553936 588557 740656 969388 1107872 1177114 1481312 1938776 2354228 3877552 4119899 4708456 7755104 8239798 9416912 16479596 18833824 32959192 65918384 131836768