Search a number
-
+
129065152 = 263165053
BaseRepresentation
bin1111011000101…
…10000011000000
322222212012002211
413230112003000
5231020041102
620450151504
73125015146
oct754260300
9288765084
10129065152
1166943617
1237282594
132097c118
14131d9596
15b4e67d7
hex7b160c0

129065152 has 28 divisors (see below), whose sum is σ = 264379456. Its totient is φ = 62449920.

The previous prime is 129065137. The next prime is 129065159. The reversal of 129065152 is 251560921.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (129065159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30543 + ... + 34510.

Almost surely, 2129065152 is an apocalyptic number.

It is an amenable number.

129065152 is an abundant number, since it is smaller than the sum of its proper divisors (135314304).

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

129065152 is an equidigital number, since it uses as much as digits as its factorization.

129065152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65096 (or 65086 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 129065152 is about 11360.6844864207. The cubic root of 129065152 is about 505.3624845784.

The spelling of 129065152 in words is "one hundred twenty-nine million, sixty-five thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 31 32 62 64 124 248 496 992 1984 65053 130106 260212 520424 1040848 2016643 2081696 4033286 4163392 8066572 16133144 32266288 64532576 129065152