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131230002 = 2321871667
BaseRepresentation
bin1111101001001…
…10100100110010
3100010221011201110
413310212210302
5232043330002
621004414150
73152302521
oct764464462
9303834643
10131230002
1168092052
1237b47356
13212595b7
14136004b8
15b7c2e6c
hex7d26932

131230002 has 8 divisors (see below), whose sum is σ = 262460016. Its totient is φ = 43743332.

The previous prime is 131229997. The next prime is 131230003. The reversal of 131230002 is 200032131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

131230002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131230002.

It is not an unprimeable number, because it can be changed into a prime (131230003) 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, 10935828 + ... + 10935839.

It is an arithmetic number, because the mean of its divisors is an integer number (32807502).

Almost surely, 2131230002 is an apocalyptic number.

131230002 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.

131230002 is a wasteful number, since it uses less digits than its factorization.

131230002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21871672.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131230002 is about 11455.5664198677. The cubic root of 131230002 is about 508.1723664369.

Adding to 131230002 its reverse (200032131), we get a palindrome (331262133).

The spelling of 131230002 in words is "one hundred thirty-one million, two hundred thirty thousand, two".

Divisors: 1 2 3 6 21871667 43743334 65615001 131230002