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124413220 = 2256220661
BaseRepresentation
bin1110110101001…
…10010100100100
322200002211212001
413122212110210
5223322210340
620202335044
73040331521
oct732462444
9280084761
10124413220
1164256548
12357ba484
131ca108b9
1412748148
15adc829a
hex76a6524

124413220 has 12 divisors (see below), whose sum is σ = 261267804. Its totient is φ = 49765280.

The previous prime is 124413209. The next prime is 124413227. The reversal of 124413220 is 22314421.

It can be written as a sum of positive squares in 2 ways, for example, as 98525476 + 25887744 = 9926^2 + 5088^2 .

It is not an unprimeable number, because it can be changed into a prime (124413227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3110311 + ... + 3110350.

It is an arithmetic number, because the mean of its divisors is an integer number (21772317).

Almost surely, 2124413220 is an apocalyptic number.

124413220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124413220 is an abundant number, since it is smaller than the sum of its proper divisors (136854584).

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

124413220 is a wasteful number, since it uses less digits than its factorization.

124413220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220670 (or 6220668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 124413220 is about 11154.0674195560. The cubic root of 124413220 is about 499.2163992479.

Adding to 124413220 its reverse (22314421), we get a palindrome (146727641).

The spelling of 124413220 in words is "one hundred twenty-four million, four hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6220661 12441322 24882644 31103305 62206610 124413220