Search a number
-
+
157538560 = 285123077
BaseRepresentation
bin10010110001111…
…01100100000000
3101222102210021111
421120331210000
5310312213220
623344333104
73622025044
oct1130754400
9358383244
10157538560
1180a21063
1244914194
132683b2aa
1416ccc024
15dc6d15a
hex963d900

157538560 has 36 divisors (see below), whose sum is σ = 377357148. Its totient is φ = 63014912.

The previous prime is 157538503. The next prime is 157538581. The reversal of 157538560 is 65835751.

It can be written as a sum of positive squares in 2 ways, for example, as 61968384 + 95570176 = 7872^2 + 9776^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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, 60259 + ... + 62818.

It is an arithmetic number, because the mean of its divisors is an integer number (10482143).

Almost surely, 2157538560 is an apocalyptic number.

157538560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157538560 is an abundant number, since it is smaller than the sum of its proper divisors (219818588).

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

157538560 is an equidigital number, since it uses as much as digits as its factorization.

157538560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123098 (or 123084 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 157538560 is about 12551.4365711659. The cubic root of 157538560 is about 540.0852174610.

The spelling of 157538560 in words is "one hundred fifty-seven million, five hundred thirty-eight thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 123077 246154 492308 615385 984616 1230770 1969232 2461540 3938464 4923080 7876928 9846160 15753856 19692320 31507712 39384640 78769280 157538560