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131012 = 2274679
BaseRepresentation
bin11111111111000100
320122201022
4133333010
513143022
62450312
71053650
oct377704
9218638
10131012
118a482
1263998
134782b
1435a60
1528c42
hex1ffc4

131012 has 12 divisors (see below), whose sum is σ = 262080. Its totient is φ = 56136.

The previous prime is 131011. The next prime is 131023. The reversal of 131012 is 210131.

131012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2131012 is an apocalyptic number.

It is an amenable number.

131012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131012 is a wasteful number, since it uses less digits than its factorization.

131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690 (or 4688 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 131012 is about 361.9557984064. The cubic root of 131012 is about 50.7890814983.

Adding to 131012 its reverse (210131), we get a palindrome (341143).

It can be divided in two parts, 1 and 31012, that added together give a palindrome (31013).

The spelling of 131012 in words is "one hundred thirty-one thousand, twelve".

Divisors: 1 2 4 7 14 28 4679 9358 18716 32753 65506 131012