Search a number
-
+
132745808 = 2413638201
BaseRepresentation
bin1111110100110…
…00101001010000
3100020210012000102
413322120221100
5232440331213
621101111532
73201215006
oct772305120
9306705012
10132745808
1168a27988
12385585a8
132166a520
14138b6a76
15b9c2158
hex7e98a50

132745808 has 20 divisors (see below), whose sum is σ = 276979668. Its totient is φ = 61267200.

The previous prime is 132745807. The next prime is 132745819. The reversal of 132745808 is 808547231.

It can be written as a sum of positive squares in 2 ways, for example, as 41886784 + 90859024 = 6472^2 + 9532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132745807) 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 3 ways as a sum of consecutive naturals, for example, 318893 + ... + 319308.

Almost surely, 2132745808 is an apocalyptic number.

It is an amenable number.

132745808 is an abundant number, since it is smaller than the sum of its proper divisors (144233860).

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

132745808 is a wasteful number, since it uses less digits than its factorization.

132745808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638222 (or 638216 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 132745808 is about 11521.5367030618. The cubic root of 132745808 is about 510.1214730514.

The spelling of 132745808 in words is "one hundred thirty-two million, seven hundred forty-five thousand, eight hundred eight".

Divisors: 1 2 4 8 13 16 26 52 104 208 638201 1276402 2552804 5105608 8296613 10211216 16593226 33186452 66372904 132745808