Search a number
-
+
124130120 = 2356150873
BaseRepresentation
bin1110110011000…
…01001101001000
322122120110111212
413121201031020
5223234130440
620152312252
73035042252
oct731411510
9278513455
10124130120
1164082884
12356a2688
131c941a9a
14126b2cd2
15ad6e465
hex7661348

124130120 has 32 divisors (see below), whose sum is σ = 283876920. Its totient is φ = 48837120.

The previous prime is 124130113. The next prime is 124130129. The reversal of 124130120 is 21031421.

It can be written as a sum of positive squares in 4 ways, for example, as 69989956 + 54140164 = 8366^2 + 7358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 124130095 and 124130104.

It is not an unprimeable number, because it can be changed into a prime (124130129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22997 + ... + 27876.

Almost surely, 2124130120 is an apocalyptic number.

124130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124130120 is an abundant number, since it is smaller than the sum of its proper divisors (159746800).

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

124130120 is a wasteful number, since it uses less digits than its factorization.

124130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50945 (or 50941 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 124130120 is about 11141.3697542089. The cubic root of 124130120 is about 498.8374590922.

Adding to 124130120 its reverse (21031421), we get a palindrome (145161541).

The spelling of 124130120 in words is "one hundred twenty-four million, one hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 50873 101746 203492 254365 406984 508730 1017460 2034920 3103253 6206506 12413012 15516265 24826024 31032530 62065060 124130120