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131838264 = 233217195669
BaseRepresentation
bin1111101101110…
…11000100111000
3100012002002002200
413312323010320
5232222311024
621025430200
73160415055
oct766730470
9305062080
10131838264
1168468048
123819b360
132141040c
141371c02c
15b8932c9
hex7dbb138

131838264 has 96 divisors (see below), whose sum is σ = 398034000. Its totient is φ = 39177216.

The previous prime is 131838253. The next prime is 131838271. The reversal of 131838264 is 462838131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20422 + ... + 26090.

Almost surely, 2131838264 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 131838264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199017000).

131838264 is an abundant number, since it is smaller than the sum of its proper divisors (266195736).

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

131838264 is a wasteful number, since it uses less digits than its factorization.

131838264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717 (or 5710 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 131838264 is about 11482.0844797450. The cubic root of 131838264 is about 508.9562969156.

The spelling of 131838264 in words is "one hundred thirty-one million, eight hundred thirty-eight thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 19 24 34 36 38 51 57 68 72 76 102 114 136 152 153 171 204 228 306 323 342 408 456 612 646 684 969 1224 1292 1368 1938 2584 2907 3876 5669 5814 7752 11338 11628 17007 22676 23256 34014 45352 51021 68028 96373 102042 107711 136056 192746 204084 215422 289119 323133 385492 408168 430844 578238 646266 770984 861688 867357 969399 1156476 1292532 1734714 1831087 1938798 2312952 2585064 3469428 3662174 3877596 5493261 6938856 7324348 7755192 10986522 14648696 16479783 21973044 32959566 43946088 65919132 131838264