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132315144 = 233132771531
BaseRepresentation
bin1111110001011…
…11100000001000
3100012222022020220
413320233200020
5232333041034
621043550040
73164442303
oct770574010
9305868226
10132315144
1168763365
123838b320
13215494b0
1413803b3a
15b939749
hex7e2f808

132315144 has 64 divisors (see below), whose sum is σ = 357752640. Its totient is φ = 40538880.

The previous prime is 132315137. The next prime is 132315149. The reversal of 132315144 is 441513231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (132315149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85659 + ... + 87189.

It is an arithmetic number, because the mean of its divisors is an integer number (5589885).

Almost surely, 2132315144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132315144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178876320).

132315144 is an abundant number, since it is smaller than the sum of its proper divisors (225437496).

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

132315144 is a wasteful number, since it uses less digits than its factorization.

132315144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1826 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 132315144 is about 11502.8319991209. The cubic root of 132315144 is about 509.5692171626.

Adding to 132315144 its reverse (441513231), we get a palindrome (573828375).

The spelling of 132315144 in words is "one hundred thirty-two million, three hundred fifteen thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 277 312 554 831 1108 1531 1662 2216 3062 3324 3601 4593 6124 6648 7202 9186 10803 12248 14404 18372 19903 21606 28808 36744 39806 43212 59709 79612 86424 119418 159224 238836 424087 477672 848174 1272261 1696348 2544522 3392696 5089044 5513131 10178088 11026262 16539393 22052524 33078786 44105048 66157572 132315144