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131500310 = 2513150031
BaseRepresentation
bin1111101011010…
…00100100010110
3100011102220111212
413311220210112
5232131002220
621014301422
73154506554
oct765504426
9304386455
10131500310
1168257147
1238057872
1321322646
1413670bd4
15b8280c5
hex7d68916

131500310 has 8 divisors (see below), whose sum is σ = 236700576. Its totient is φ = 52600120.

The previous prime is 131500279. The next prime is 131500333. The reversal of 131500310 is 13005131.

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

It is a super-2 number, since 2×1315003102 = 34584663060192200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6575006 + ... + 6575025.

It is an arithmetic number, because the mean of its divisors is an integer number (29587572).

Almost surely, 2131500310 is an apocalyptic number.

131500310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131500310 is a deficient number, since it is larger than the sum of its proper divisors (105200266).

131500310 is a wasteful number, since it uses less digits than its factorization.

131500310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13150038.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 131500310 is about 11467.3584578141. The cubic root of 131500310 is about 508.5210388647.

Adding to 131500310 its reverse (13005131), we get a palindrome (144505441).

The spelling of 131500310 in words is "one hundred thirty-one million, five hundred thousand, three hundred ten".

Divisors: 1 2 5 10 13150031 26300062 65750155 131500310