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131814270 = 2335797719
BaseRepresentation
bin1111101101101…
…01001101111110
3100012000212012000
413312311031332
5232221024040
621025123130
73160255110
oct766651576
9305025160
10131814270
1168451015
12381894a6
1321402513
14137133b0
15b88b130
hex7db537e

131814270 has 128 divisors (see below), whose sum is σ = 406425600. Its totient is φ = 29776896.

The previous prime is 131814253. The next prime is 131814281. The reversal of 131814270 is 72418131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182971 + ... + 183689.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2131814270 is an apocalyptic number.

131814270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131814270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203212800).

131814270 is an abundant number, since it is smaller than the sum of its proper divisors (274611330).

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

131814270 is a wasteful number, since it uses less digits than its factorization.

131814270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 131814270 is about 11481.0395870757. The cubic root of 131814270 is about 508.9254190861.

The spelling of 131814270 in words is "one hundred thirty-one million, eight hundred fourteen thousand, two hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 97 105 126 135 189 194 210 270 291 315 378 485 582 630 679 719 873 945 970 1358 1438 1455 1746 1890 2037 2157 2619 2910 3395 3595 4074 4314 4365 5033 5238 6111 6471 6790 7190 8730 10066 10185 10785 12222 12942 13095 15099 18333 19413 20370 21570 25165 26190 30198 30555 32355 36666 38826 45297 50330 61110 64710 69743 75495 90594 91665 97065 135891 139486 150990 183330 194130 209229 226485 271782 348715 418458 452970 488201 627687 679455 697430 976402 1046145 1255374 1358910 1464603 1883061 2092290 2441005 2929206 3138435 3766122 4393809 4882010 6276870 7323015 8787618 9415305 13181427 14646030 18830610 21969045 26362854 43938090 65907135 131814270