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124032220 = 22513477047
BaseRepresentation
bin1110110010010…
…01010011011100
322122101111012221
413121021103130
5223223012340
620150235124
73034153654
oct731112334
9278344187
10124032220
1164016274
1235655aa4
131c909360
1412689364
15ad5044a
hex76494dc

124032220 has 24 divisors (see below), whose sum is σ = 280504224. Its totient is φ = 45796416.

The previous prime is 124032199. The next prime is 124032239. The reversal of 124032220 is 22230421.

It is a junction number, because it is equal to n+sod(n) for n = 124032194 and 124032203.

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, 238264 + ... + 238783.

It is an arithmetic number, because the mean of its divisors is an integer number (11687676).

Almost surely, 2124032220 is an apocalyptic number.

124032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124032220 is an abundant number, since it is smaller than the sum of its proper divisors (156472004).

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

124032220 is a wasteful number, since it uses less digits than its factorization.

124032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477069 (or 477067 counting only the distinct ones).

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

The square root of 124032220 is about 11136.9753524016. The cubic root of 124032220 is about 498.7062821419.

Adding to 124032220 its reverse (22230421), we get a palindrome (146262641).

The spelling of 124032220 in words is "one hundred twenty-four million, thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 477047 954094 1908188 2385235 4770470 6201611 9540940 12403222 24806444 31008055 62016110 124032220