Search a number
-
+
120220478 = 2727131687
BaseRepresentation
bin1110010101001…
…10101100111110
322101012211111022
413022212230332
5221234023403
615532424142
72656600010
oct712465476
9271184438
10120220478
1161952474
1234318052
131bba33a1
1411d761b0
15a84ad38
hex72a6b3e

120220478 has 16 divisors (see below), whose sum is σ = 206859264. Its totient is φ = 51331320.

The previous prime is 120220459. The next prime is 120220489. The reversal of 120220478 is 874022021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12050 + ... + 19637.

It is an arithmetic number, because the mean of its divisors is an integer number (12928704).

Almost surely, 2120220478 is an apocalyptic number.

120220478 is a deficient number, since it is larger than the sum of its proper divisors (86638786).

120220478 is a wasteful number, since it uses less digits than its factorization.

120220478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31967.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 120220478 is about 10964.5099297689. The cubic root of 120220478 is about 493.5443108852.

Adding to 120220478 its reverse (874022021), we get a palindrome (994242499).

The spelling of 120220478 in words is "one hundred twenty million, two hundred twenty thousand, four hundred seventy-eight".

Divisors: 1 2 7 14 271 542 1897 3794 31687 63374 221809 443618 8587177 17174354 60110239 120220478