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132805988 = 22727717123
BaseRepresentation
bin1111110101001…
…11010101100100
3100020220020120022
413322213111210
5232444242423
621102254312
73201555320
oct772472544
9306806508
10132805988
1168a69117
1238587398
132168ba33
14138d0980
15b9d4dc8
hex7ea7564

132805988 has 24 divisors (see below), whose sum is σ = 266586432. Its totient is φ = 56708064.

The previous prime is 132805961. The next prime is 132806041. The reversal of 132805988 is 889508231.

It is a super-2 number, since 2×1328059882 = 35274860897312288, which contains 22 as substring.

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, 806 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (11107768).

Almost surely, 2132805988 is an apocalyptic number.

It is an amenable number.

132805988 is an abundant number, since it is smaller than the sum of its proper divisors (133780444).

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

132805988 is a wasteful number, since it uses less digits than its factorization.

132805988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17411 (or 17409 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 132805988 is about 11524.1480379245. The cubic root of 132805988 is about 510.1985488620.

The spelling of 132805988 in words is "one hundred thirty-two million, eight hundred five thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 277 554 1108 1939 3878 7756 17123 34246 68492 119861 239722 479444 4743071 9486142 18972284 33201497 66402994 132805988