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131416560 = 24335115531
BaseRepresentation
bin1111101010101…
…00000111110000
3100011021122122000
413311110013300
5232120312220
621012414000
73154010442
oct765240760
9304248560
10131416560
11681aa230
1238017300
13212c34a2
141364c492
15b80d390
hex7d541f0

131416560 has 160 divisors (see below), whose sum is σ = 493896960. Its totient is φ = 31852800.

The previous prime is 131416553. The next prime is 131416561. The reversal of 131416560 is 65614131.

131416560 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 1 + 656 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131416561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20995 + ... + 26525.

It is an arithmetic number, because the mean of its divisors is an integer number (3086856).

Almost surely, 2131416560 is an apocalyptic number.

131416560 is a gapful number since it is divisible by the number (10) 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 131416560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246948480).

131416560 is an abundant number, since it is smaller than the sum of its proper divisors (362480400).

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

131416560 is a wasteful number, since it uses less digits than its factorization.

131416560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5552 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 131416560 is about 11463.7062069821. The cubic root of 131416560 is about 508.4130602054.

It can be divided in two parts, 13141 and 6560, that added together give a triangular number (19701 = T198).

The spelling of 131416560 in words is "one hundred thirty-one million, four hundred sixteen thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 33 36 40 44 45 48 54 55 60 66 72 80 88 90 99 108 110 120 132 135 144 165 176 180 198 216 220 240 264 270 297 330 360 396 432 440 495 528 540 594 660 720 792 880 990 1080 1188 1320 1485 1584 1980 2160 2376 2640 2970 3960 4752 5531 5940 7920 11062 11880 16593 22124 23760 27655 33186 44248 49779 55310 60841 66372 82965 88496 99558 110620 121682 132744 149337 165930 182523 199116 221240 243364 248895 265488 298674 304205 331860 365046 398232 442480 486728 497790 547569 597348 608410 663720 730092 746685 796464 912615 973456 995580 1095138 1194696 1216820 1327440 1460184 1493370 1642707 1825230 1991160 2190276 2389392 2433640 2737845 2920368 2986740 3285414 3650460 3982320 4380552 4867280 5475690 5973480 6570828 7300920 8213535 8761104 10951380 11946960 13141656 14601840 16427070 21902760 26283312 32854140 43805520 65708280 131416560