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131144496 = 24372943313
BaseRepresentation
bin1111101000100…
…01101100110000
3100010202211102120
413310101230300
5232033110441
621002514240
73151465320
oct764215460
9303684376
10131144496
116803388a
1237b05980
13212296c2
14135bb280
15b7a7966
hex7d11b30

131144496 has 160 divisors (see below), whose sum is σ = 411164160. Its totient is φ = 35223552.

The previous prime is 131144473. The next prime is 131144501. The reversal of 131144496 is 694441131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 418836 + ... + 419148.

It is an arithmetic number, because the mean of its divisors is an integer number (2569776).

Almost surely, 2131144496 is an apocalyptic number.

131144496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131144496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205582080).

131144496 is an abundant number, since it is smaller than the sum of its proper divisors (280019664).

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

131144496 is a wasteful number, since it uses less digits than its factorization.

131144496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 397 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 131144496 is about 11451.8337396244. The cubic root of 131144496 is about 508.0619718969.

The spelling of 131144496 in words is "one hundred thirty-one million, one hundred forty-four thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 29 42 43 48 56 58 84 86 87 112 116 129 168 172 174 203 232 258 301 313 336 344 348 406 464 516 602 609 626 688 696 812 903 939 1032 1204 1218 1247 1252 1392 1624 1806 1878 2064 2191 2408 2436 2494 2504 3248 3612 3741 3756 4382 4816 4872 4988 5008 6573 7224 7482 7512 8729 8764 9077 9744 9976 13146 13459 14448 14964 15024 17458 17528 18154 19952 26187 26292 26918 27231 29928 34916 35056 36308 40377 52374 52584 53836 54462 59856 63539 69832 72616 80754 94213 104748 105168 107672 108924 127078 139664 145232 161508 188426 190617 209496 215344 217848 254156 282639 323016 376852 381234 390311 418992 435696 508312 565278 646032 753704 762468 780622 1016624 1130556 1170933 1507408 1524936 1561244 2261112 2341866 2732177 3049872 3122488 4522224 4683732 5464354 6244976 8196531 9367464 10928708 16393062 18734928 21857416 32786124 43714832 65572248 131144496