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131314233 = 32931181269
BaseRepresentation
bin1111101001110…
…11001000111001
3100011002110021010
413310323020321
5232104023413
621010304133
73153103221
oct764731071
9304073233
10131314233
116813a366
1237b88049
1321288a3b
1413623081
15b7dcdc3
hex7d3b239

131314233 has 32 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 81043200.

The previous prime is 131314223. The next prime is 131314243. The reversal of 131314233 is 332413131.

It is an interprime number because it is at equal distance from previous prime (131314223) and next prime (131314243).

It is not a de Polignac number, because 131314233 - 25 = 131314201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131314223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 488023 + ... + 488291.

It is an arithmetic number, because the mean of its divisors is an integer number (5896800).

Almost surely, 2131314233 is an apocalyptic number.

It is an amenable number.

131314233 is a deficient number, since it is larger than the sum of its proper divisors (57383367).

131314233 is a wasteful number, since it uses less digits than its factorization.

131314233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its digits is 648, while the sum is 21.

The square root of 131314233 is about 11459.2422524354. The cubic root of 131314233 is about 508.2810679818.

Adding to 131314233 its reverse (332413131), we get a palindrome (463727364).

The spelling of 131314233 in words is "one hundred thirty-one million, three hundred fourteen thousand, two hundred thirty-three".

Divisors: 1 3 29 31 87 93 181 269 543 807 899 2697 5249 5611 7801 8339 15747 16833 23403 25017 48689 146067 162719 241831 488157 725493 1411981 1509359 4235943 4528077 43771411 131314233