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131444052 = 22319576509
BaseRepresentation
bin1111101010110…
…10110101010100
3100011100001100020
413311122311110
5232122202202
621013145140
73154153545
oct765326524
9304301306
10131444052
1168218953
123802b1b0
1321302b5c
14136584cc
15b8165bc
hex7d5ad54

131444052 has 24 divisors (see below), whose sum is σ = 322845600. Its totient is φ = 41508576.

The previous prime is 131444041. The next prime is 131444069. The reversal of 131444052 is 250444131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288027 + ... + 288482.

It is an arithmetic number, because the mean of its divisors is an integer number (13451900).

Almost surely, 2131444052 is an apocalyptic number.

131444052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131444052 is an abundant number, since it is smaller than the sum of its proper divisors (191401548).

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

131444052 is a wasteful number, since it uses less digits than its factorization.

131444052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576535 (or 576533 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 131444052 is about 11464.9052329271. The cubic root of 131444052 is about 508.4485106268.

Adding to 131444052 its reverse (250444131), we get a palindrome (381888183).

The spelling of 131444052 in words is "one hundred thirty-one million, four hundred forty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 576509 1153018 1729527 2306036 3459054 6918108 10953671 21907342 32861013 43814684 65722026 131444052