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131334115550 = 252111823130987
BaseRepresentation
bin111101001010000011…
…1111001000011011110
3110112222220022100002212
41322110013321003132
54122433013144200
6140200053520422
712326403364031
oct1722407710336
9415886270085
10131334115550
1150775758970
1221553643112
13c5003c5b11
1464dc74b018
15363a042035
hex1e941f90de

131334115550 has 48 divisors (see below), whose sum is σ = 266637076992. Its totient is φ = 47731298400.

The previous prime is 131334115543. The next prime is 131334115571. The reversal of 131334115550 is 55511433131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937157 + ... + 1068143.

It is an arithmetic number, because the mean of its divisors is an integer number (5554939104).

Almost surely, 2131334115550 is an apocalyptic number.

131334115550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131334115550 is an abundant number, since it is smaller than the sum of its proper divisors (135302961442).

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

131334115550 is a wasteful number, since it uses less digits than its factorization.

131334115550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132833 (or 132828 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 131334115550 its reverse (55511433131), we get a palindrome (186845548681).

The spelling of 131334115550 in words is "one hundred thirty-one billion, three hundred thirty-four million, one hundred fifteen thousand, five hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 1823 3646 9115 18230 20053 40106 45575 91150 100265 130987 200530 261974 501325 654935 1002650 1309870 1440857 2881714 3274675 6549350 7204285 14408570 36021425 72042850 238789301 477578602 1193946505 2387893010 2626682311 5253364622 5969732525 11939465050 13133411555 26266823110 65667057775 131334115550