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132040081 = 461286421
BaseRepresentation
bin1111101111011…
…00010110010001
3100012110022221101
413313230112101
5232300240311
621034024401
73162215335
oct767542621
9305408841
10132040081
1168595738
1238278101
1321481234
14137717c5
15b8d2ec1
hex7dec591

132040081 has 4 divisors (see below), whose sum is σ = 132326964. Its totient is φ = 131753200.

The previous prime is 132040031. The next prime is 132040099. The reversal of 132040081 is 180040231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100500625 + 31539456 = 10025^2 + 5616^2 .

It is a cyclic number.

It is not a de Polignac number, because 132040081 - 27 = 132039953 is a prime.

It is a super-2 number, since 2×1320400812 = 34869165980973122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132040021) 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, 142750 + ... + 143671.

It is an arithmetic number, because the mean of its divisors is an integer number (33081741).

Almost surely, 2132040081 is an apocalyptic number.

It is an amenable number.

132040081 is a deficient number, since it is larger than the sum of its proper divisors (286883).

132040081 is an equidigital number, since it uses as much as digits as its factorization.

132040081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286882.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 132040081 is about 11490.8694623166. The cubic root of 132040081 is about 509.2158666391.

The spelling of 132040081 in words is "one hundred thirty-two million, forty thousand, eighty-one".

Divisors: 1 461 286421 132040081