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131333322100 = 225271151122501
BaseRepresentation
bin111101001010000010…
…0110111010101110100
3110112222211211000200211
41322110010313111310
54122432312301400
6140200024515204
712326363550541
oct1722404672564
9415884730624
10131333322100
1150775266822
122155331bb04
13c5001a8916
1464dc5c1bc8
153639e36dba
hex1e94137574

131333322100 has 72 divisors (see below), whose sum is σ = 290923629696. Its totient is φ = 51450000000.

The previous prime is 131333321969. The next prime is 131333322121. The reversal of 131333322100 is 1223333131.

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 23 ways as a sum of consecutive naturals, for example, 1010850 + ... + 1133350.

It is an arithmetic number, because the mean of its divisors is an integer number (4040605968).

Almost surely, 2131333322100 is an apocalyptic number.

131333322100 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 131333322100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145461814848).

131333322100 is an abundant number, since it is smaller than the sum of its proper divisors (159590307596).

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

131333322100 is a wasteful number, since it uses less digits than its factorization.

131333322100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122737 (or 122730 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131333322100 its reverse (1223333131), we get a palindrome (132556655231).

The spelling of 131333322100 in words is "one hundred thirty-one billion, three hundred thirty-three million, three hundred twenty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 71 100 142 151 284 302 355 604 710 755 1420 1510 1775 3020 3550 3775 7100 7550 10721 15100 21442 42884 53605 107210 122501 214420 245002 268025 490004 536050 612505 1072100 1225010 2450020 3062525 6125050 8697571 12250100 17395142 18497651 34790284 36995302 43487855 73990604 86975710 92488255 173951420 184976510 217439275 369953020 434878550 462441275 869757100 924882550 1313333221 1849765100 2626666442 5253332884 6566666105 13133332210 26266664420 32833330525 65666661050 131333322100