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131187068 = 22298997131
BaseRepresentation
bin1111101000111…
…00000101111100
3100010211222211022
413310130011330
5232040441233
621003443312
73152033405
oct764340574
9303758738
10131187068
1168062871
1237b26538
1321242bac
14135cc9ac
15b7b5398
hex7d1c17c

131187068 has 48 divisors (see below), whose sum is σ = 244490400. Its totient is φ = 61501440.

The previous prime is 131187053. The next prime is 131187073. The reversal of 131187068 is 860781131.

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, 1001363 + ... + 1001493.

It is an arithmetic number, because the mean of its divisors is an integer number (5093550).

Almost surely, 2131187068 is an apocalyptic number.

It is an amenable number.

131187068 is a deficient number, since it is larger than the sum of its proper divisors (113303332).

131187068 is a wasteful number, since it uses less digits than its factorization.

131187068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 131187068 is about 11453.6923304234. The cubic root of 131187068 is about 508.1169414786.

The spelling of 131187068 in words is "one hundred thirty-one million, one hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 4 29 58 89 97 116 131 178 194 262 356 388 524 2581 2813 3799 5162 5626 7598 8633 10324 11252 11659 12707 15196 17266 23318 25414 34532 46636 50828 250357 338111 368503 500714 676222 737006 1001428 1130923 1352444 1474012 2261846 4523692 32796767 65593534 131187068