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132555331 = 233568907
BaseRepresentation
bin1111110011010…
…10001001000011
3100020102111201201
413321222021003
5232413232311
621053042031
73166462456
oct771521103
9306374651
10132555331
1168907867
1238486317
132160190c
141386749d
15b9859c1
hex7e6a243

132555331 has 4 divisors (see below), whose sum is σ = 133124472. Its totient is φ = 131986192.

The previous prime is 132555301. The next prime is 132555373. The reversal of 132555331 is 133555231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133555231 = 139960829.

It is a cyclic number.

It is not a de Polignac number, because 132555331 - 25 = 132555299 is a prime.

It is a super-2 number, since 2×1325553312 = 35141831553039122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132555331.

It is not an unprimeable number, because it can be changed into a prime (132555301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284221 + ... + 284686.

It is an arithmetic number, because the mean of its divisors is an integer number (33281118).

Almost surely, 2132555331 is an apocalyptic number.

132555331 is a deficient number, since it is larger than the sum of its proper divisors (569141).

132555331 is an equidigital number, since it uses as much as digits as its factorization.

132555331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569140.

The product of its digits is 6750, while the sum is 28.

The square root of 132555331 is about 11513.2676074171. The cubic root of 132555331 is about 509.8773651053.

The spelling of 132555331 in words is "one hundred thirty-two million, five hundred fifty-five thousand, three hundred thirty-one".

Divisors: 1 233 568907 132555331