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12424020 = 2235729581
BaseRepresentation
bin101111011001…
…001101010100
3212101012112220
4233121031110
511140032040
61122142340
7210413430
oct57311524
925335486
1012424020
117016394
1241b19b0
13275ccbb
1419159c0
1511562d0
hexbd9354

12424020 has 48 divisors (see below), whose sum is σ = 39758208. Its totient is φ = 2839680.

The previous prime is 12424019. The next prime is 12424031. The reversal of 12424020 is 2042421.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14371 + ... + 15210.

It is an arithmetic number, because the mean of its divisors is an integer number (828296).

Almost surely, 212424020 is an apocalyptic number.

12424020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12424020 is an abundant number, since it is smaller than the sum of its proper divisors (27334188).

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

12424020 is a wasteful number, since it uses less digits than its factorization.

12424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29600 (or 29598 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 12424020 is about 3524.7723330734. The cubic root of 12424020 is about 231.6082618212.

Adding to 12424020 its reverse (2042421), we get a palindrome (14466441).

The spelling of 12424020 in words is "twelve million, four hundred twenty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 29581 59162 88743 118324 147905 177486 207067 295810 354972 414134 443715 591620 621201 828268 887430 1035335 1242402 1774860 2070670 2484804 3106005 4141340 6212010 12424020