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131313000 = 23353713237
BaseRepresentation
bin1111101001110…
…10110101101000
3100011002101120110
413310322311220
5232104004000
621010254320
73153066510
oct764726550
9304071513
10131313000
1168139445
1237b873a0
1321288300
1413622840
15b7dc850
hex7d3ad68

131313000 has 384 divisors, whose sum is σ = 520715520. Its totient is φ = 26956800.

The previous prime is 131312989. The next prime is 131313001. The reversal of 131313000 is 313131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (131313001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3548982 + ... + 3549018.

It is an arithmetic number, because the mean of its divisors is an integer number (1356030).

Almost surely, 2131313000 is an apocalyptic number.

131313000 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 131313000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260357760).

131313000 is an abundant number, since it is smaller than the sum of its proper divisors (389402520).

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

131313000 is a wasteful number, since it uses less digits than its factorization.

131313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 131313000 is about 11459.1884529403. The cubic root of 131313000 is about 508.2794771096.

Adding to 131313000 its reverse (313131), we get a palindrome (131626131).

The spelling of 131313000 in words is "one hundred thirty-one million, three hundred thirteen thousand".