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124223020 = 2257187481
BaseRepresentation
bin1110110011101…
…11111000101100
322122202011221121
413121313320230
5223300114040
620154310324
73035610145
oct731677054
9278664847
10124223020
1164136659
12357283a4
131c97515c
14126d8acc
15ad8bc4a
hex7677e2c

124223020 has 24 divisors (see below), whose sum is σ = 264545568. Its totient is φ = 48988800.

The previous prime is 124223017. The next prime is 124223039. The reversal of 124223020 is 20322421.

It is a junction number, because it is equal to n+sod(n) for n = 124222985 and 124223003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42321 + ... + 45160.

It is an arithmetic number, because the mean of its divisors is an integer number (11022732).

Almost surely, 2124223020 is an apocalyptic number.

124223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124223020 is an abundant number, since it is smaller than the sum of its proper divisors (140322548).

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

124223020 is a wasteful number, since it uses less digits than its factorization.

124223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87561 (or 87559 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 124223020 is about 11145.5381207010. The cubic root of 124223020 is about 498.9618727420.

Adding to 124223020 its reverse (20322421), we get a palindrome (144545441).

The spelling of 124223020 in words is "one hundred twenty-four million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 87481 174962 349924 437405 874810 1749620 6211151 12422302 24844604 31055755 62111510 124223020