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133141761 = 3261324133
BaseRepresentation
bin1111110111110…
…01010100000001
3100021112022011100
413323321110001
5233041014021
621113405013
73204454254
oct773712401
9307468140
10133141761
1169178415
1238709769
132177880c
141397b09b
15ba4e626
hex7ef9501

133141761 has 12 divisors (see below), whose sum is σ = 192637588. Its totient is φ = 88612704.

The previous prime is 133141753. The next prime is 133141769. The reversal of 133141761 is 167141331.

It is an interprime number because it is at equal distance from previous prime (133141753) and next prime (133141769).

It can be written as a sum of positive squares in 2 ways, for example, as 19847025 + 113294736 = 4455^2 + 10644^2 .

It is not a de Polignac number, because 133141761 - 23 = 133141753 is a prime.

It is a super-2 number, since 2×1331417612 = 35453457044362242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133141769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6550 + ... + 17583.

Almost surely, 2133141761 is an apocalyptic number.

It is an amenable number.

133141761 is a deficient number, since it is larger than the sum of its proper divisors (59495827).

133141761 is a wasteful number, since it uses less digits than its factorization.

133141761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24752 (or 24749 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 133141761 is about 11538.7070766182. The cubic root of 133141761 is about 510.6281648440.

The spelling of 133141761 in words is "one hundred thirty-three million, one hundred forty-one thousand, seven hundred sixty-one".

Divisors: 1 3 9 613 1839 5517 24133 72399 217197 14793529 44380587 133141761