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132357481 = 137966113
BaseRepresentation
bin1111110001110…
…01110101101001
3100020001110022221
413320321311221
5232340414411
621044514041
73165006604
oct770716551
9306043287
10132357481
1168792153
12383ab921
1321562849
141381533b
15b947071
hex7e39d69

132357481 has 4 divisors (see below), whose sum is σ = 133323732. Its totient is φ = 131391232.

The previous prime is 132357457. The next prime is 132357503. The reversal of 132357481 is 184753231.

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 53875600 + 78481881 = 7340^2 + 8859^2 .

It is a cyclic number.

It is not a de Polignac number, because 132357481 - 219 = 131833193 is a prime.

It is a super-2 number, since 2×1323574812 = 35037005553330722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132351481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482920 + ... + 483193.

It is an arithmetic number, because the mean of its divisors is an integer number (33330933).

Almost surely, 2132357481 is an apocalyptic number.

It is an amenable number.

132357481 is a deficient number, since it is larger than the sum of its proper divisors (966251).

132357481 is an equidigital number, since it uses as much as digits as its factorization.

132357481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966250.

The product of its digits is 20160, while the sum is 34.

The square root of 132357481 is about 11504.6721378751. The cubic root of 132357481 is about 509.6235604794.

The spelling of 132357481 in words is "one hundred thirty-two million, three hundred fifty-seven thousand, four hundred eighty-one".

Divisors: 1 137 966113 132357481