Search a number
-
+
120354728 = 23131157257
BaseRepresentation
bin1110010110001…
…11011110101000
322101110122122112
413023013132220
5221302322403
615535341452
72660666264
oct713073650
9271418575
10120354728
1161a3431a
1234381888
131bc1c520
1411dad0a4
15a8759d8
hex72c77a8

120354728 has 16 divisors (see below), whose sum is σ = 243024180. Its totient is φ = 55548288.

The previous prime is 120354691. The next prime is 120354739. The reversal of 120354728 is 827453021.

It can be written as a sum of positive squares in 2 ways, for example, as 91431844 + 28922884 = 9562^2 + 5378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120354694 and 120354703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578525 + ... + 578732.

Almost surely, 2120354728 is an apocalyptic number.

It is an amenable number.

120354728 is an abundant number, since it is smaller than the sum of its proper divisors (122669452).

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

120354728 is a wasteful number, since it uses less digits than its factorization.

120354728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157276 (or 1157272 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 120354728 is about 10970.6302462529. The cubic root of 120354728 is about 493.7279559031.

The spelling of 120354728 in words is "one hundred twenty million, three hundred fifty-four thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 13 26 52 104 1157257 2314514 4629028 9258056 15044341 30088682 60177364 120354728