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131000760 = 233351111027
BaseRepresentation
bin1111100111011…
…10100110111000
3100010111112021000
413303232212320
5232014011020
620555445000
73150326262
oct763564670
9303445230
10131000760
1167a458a0
1237a56760
13211a9157
1413580b32
15b77a090
hex7cee9b8

131000760 has 128 divisors (see below), whose sum is σ = 476409600. Its totient is φ = 31754880.

The previous prime is 131000719. The next prime is 131000767. The reversal of 131000760 is 67000131.

It is a super-2 number, since 2×1310007602 = 34322398241155200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6367 + ... + 17393.

It is an arithmetic number, because the mean of its divisors is an integer number (3721950).

Almost surely, 2131000760 is an apocalyptic number.

131000760 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 131000760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238204800).

131000760 is an abundant number, since it is smaller than the sum of its proper divisors (345408840).

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

131000760 is a wasteful number, since it uses less digits than its factorization.

131000760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058 (or 11048 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 131000760 is about 11445.5563429656. The cubic root of 131000760 is about 507.8762899621.

Adding to 131000760 its reverse (67000131), we get a palindrome (198000891).

The spelling of 131000760 in words is "one hundred thirty-one million, seven hundred sixty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 88 90 99 108 110 120 132 135 165 180 198 216 220 264 270 297 330 360 396 440 495 540 594 660 792 990 1080 1188 1320 1485 1980 2376 2970 3960 5940 11027 11880 22054 33081 44108 55135 66162 88216 99243 110270 121297 132324 165405 198486 220540 242594 264648 297729 330810 363891 396972 441080 485188 496215 595458 606485 661620 727782 793944 970376 992430 1091673 1190916 1212970 1323240 1455564 1488645 1819455 1984860 2183346 2381832 2425940 2911128 2977290 3275019 3638910 3969720 4366692 4851880 5458365 5954580 6550038 7277820 8733384 10916730 11909160 13100076 14555640 16375095 21833460 26200152 32750190 43666920 65500380 131000760