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124032020 = 2257885943
BaseRepresentation
bin1110110010010…
…01010000010100
322122101110221112
413121021100110
5223223011040
620150234152
73034153250
oct731112024
9278343845
10124032020
1164016102
1235655958
131c909238
1412689260
15ad50365
hex7649414

124032020 has 24 divisors (see below), whose sum is σ = 297677184. Its totient is φ = 42525216.

The previous prime is 124031993. The next prime is 124032053. The reversal of 124032020 is 20230421.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 124031986 and 124032004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442832 + ... + 443111.

It is an arithmetic number, because the mean of its divisors is an integer number (12403216).

Almost surely, 2124032020 is an apocalyptic number.

124032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124032020 is an abundant number, since it is smaller than the sum of its proper divisors (173645164).

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

124032020 is a wasteful number, since it uses less digits than its factorization.

124032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885959 (or 885957 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 124032020 is about 11136.9663732993. The cubic root of 124032020 is about 498.7060140898.

Adding to 124032020 its reverse (20230421), we get a palindrome (144262441).

The spelling of 124032020 in words is "one hundred twenty-four million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 885943 1771886 3543772 4429715 6201601 8859430 12403202 17718860 24806404 31008005 62016010 124032020