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131202052 = 2232800513
BaseRepresentation
bin1111101000111…
…11110000000100
3100010212202101021
413310133300010
5232041431202
621004040524
73152125162
oct764376004
9303782337
10131202052
1168073053
1237b33144
1321249967
14135d4232
15b7b9a37
hex7d1fc04

131202052 has 6 divisors (see below), whose sum is σ = 229603598. Its totient is φ = 65601024.

The previous prime is 131202041. The next prime is 131202053. The reversal of 131202052 is 250202131.

It can be written as a sum of positive squares in only one way, i.e., 66977856 + 64224196 = 8184^2 + 8014^2 .

It is not an unprimeable number, because it can be changed into a prime (131202053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16400253 + ... + 16400260.

Almost surely, 2131202052 is an apocalyptic number.

It is an amenable number.

131202052 is a deficient number, since it is larger than the sum of its proper divisors (98401546).

131202052 is a wasteful number, since it uses less digits than its factorization.

131202052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32800517 (or 32800515 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 131202052 is about 11454.3464239563. The cubic root of 131202052 is about 508.1362862065.

Adding to 131202052 its reverse (250202131), we get a palindrome (381404183).

The spelling of 131202052 in words is "one hundred thirty-one million, two hundred two thousand, fifty-two".

Divisors: 1 2 4 32800513 65601026 131202052