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132813442 = 2531252957
BaseRepresentation
bin1111110101010…
…01001010000010
3100020220121210101
413322221022002
5233000012232
621102353014
73201616126
oct772511202
9306817711
10132813442
1168a73783
123858b76a
1321692248
14138d3586
15b9d71e7
hex7ea9282

132813442 has 8 divisors (see below), whose sum is σ = 202979196. Its totient is φ = 65153712.

The previous prime is 132813427. The next prime is 132813463. The reversal of 132813442 is 244318231.

It can be written as a sum of positive squares in 2 ways, for example, as 123010281 + 9803161 = 11091^2 + 3131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 132813442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626373 + ... + 626584.

Almost surely, 2132813442 is an apocalyptic number.

132813442 is a deficient number, since it is larger than the sum of its proper divisors (70165754).

132813442 is a wasteful number, since it uses less digits than its factorization.

132813442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253012.

The product of its digits is 4608, while the sum is 28.

The square root of 132813442 is about 11524.4714412419. The cubic root of 132813442 is about 510.2080939859.

The spelling of 132813442 in words is "one hundred thirty-two million, eight hundred thirteen thousand, four hundred forty-two".

Divisors: 1 2 53 106 1252957 2505914 66406721 132813442