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24424420 = 2251221221
BaseRepresentation
bin101110100101…
…0111111100100
31200221220000011
41131022333210
522223040140
62231300004
7414414136
oct135127744
950856004
1024424420
1112872479
12821a604
1350a2227
14335b056
152226cea
hex174afe4

24424420 has 12 divisors (see below), whose sum is σ = 51291324. Its totient is φ = 9769760.

The previous prime is 24424399. The next prime is 24424441. The reversal of 24424420 is 2442442.

It is an interprime number because it is at equal distance from previous prime (24424399) and next prime (24424441).

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 5134756 = 4392^2 + 2266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24424391 and 24424400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610591 + ... + 610630.

It is an arithmetic number, because the mean of its divisors is an integer number (4274277).

Almost surely, 224424420 is an apocalyptic number.

24424420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24424420 is an abundant number, since it is smaller than the sum of its proper divisors (26866904).

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

24424420 is a wasteful number, since it uses less digits than its factorization.

24424420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221230 (or 1221228 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 24424420 is about 4942.1068381815. The cubic root of 24424420 is about 290.1403205195.

Adding to 24424420 its reverse (2442442), we get a palindrome (26866862).

The spelling of 24424420 in words is "twenty-four million, four hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1221221 2442442 4884884 6106105 12212210 24424420