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131365850 = 252711149229
BaseRepresentation
bin1111101010001…
…11101111011010
3100011012002001212
413311013233122
5232112201400
621011343122
73153406550
oct765075732
9304162055
10131365850
1168175120
1237bb1aa2
13212a6395
1413637bd0
15b7ed335
hex7d47bda

131365850 has 96 divisors (see below), whose sum is σ = 308016000. Its totient is φ = 40492800.

The previous prime is 131365841. The next prime is 131365859. The reversal of 131365850 is 58563131.

It is an interprime number because it is at equal distance from previous prime (131365841) and next prime (131365859).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131365859) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 573536 + ... + 573764.

It is an arithmetic number, because the mean of its divisors is an integer number (3208500).

Almost surely, 2131365850 is an apocalyptic number.

131365850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131365850 is an abundant number, since it is smaller than the sum of its proper divisors (176650150).

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

131365850 is a wasteful number, since it uses less digits than its factorization.

131365850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 131365850 is about 11461.4942306839. The cubic root of 131365850 is about 508.3476576333.

The spelling of 131365850 in words is "one hundred thirty-one million, three hundred sixty-five thousand, eight hundred fifty".

Divisors: 1 2 5 7 10 11 14 22 25 35 50 55 70 77 110 149 154 175 229 275 298 350 385 458 550 745 770 1043 1145 1490 1603 1639 1925 2086 2290 2519 3206 3278 3725 3850 5038 5215 5725 7450 8015 8195 10430 11450 11473 12595 16030 16390 17633 22946 25190 26075 34121 35266 40075 40975 52150 57365 62975 68242 80150 81950 88165 114730 125950 170605 176330 238847 286825 341210 375331 440825 477694 573650 750662 853025 881650 1194235 1706050 1876655 2388470 2627317 3753310 5254634 5971175 9383275 11942350 13136585 18766550 26273170 65682925 131365850