Search a number
-
+
124929380 = 22531201499
BaseRepresentation
bin1110111001001…
…00010101100100
322201002001220002
413130210111210
5223440220010
620221400432
73044611412
oct734442544
9281061802
10124929380
1164579324
1235a09118
131cb61814
14128402b2
15ae7b1a5
hex7724564

124929380 has 24 divisors (see below), whose sum is σ = 270816000. Its totient is φ = 48359520.

The previous prime is 124929367. The next prime is 124929407. The reversal of 124929380 is 83929421.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100130 + ... + 101369.

It is an arithmetic number, because the mean of its divisors is an integer number (11284000).

Almost surely, 2124929380 is an apocalyptic number.

124929380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124929380 is an abundant number, since it is smaller than the sum of its proper divisors (145886620).

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

124929380 is a wasteful number, since it uses less digits than its factorization.

124929380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201539 (or 201537 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 124929380 is about 11177.1812188941. The cubic root of 124929380 is about 499.9058222622.

The spelling of 124929380 in words is "one hundred twenty-four million, nine hundred twenty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 201499 402998 805996 1007495 2014990 4029980 6246469 12492938 24985876 31232345 62464690 124929380