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24286420 = 2254092969
BaseRepresentation
bin101110010100…
…1010011010100
31200200212201001
41130221103110
522204131140
62224313044
7413300614
oct134512324
950625631
1024286420
1112788824
128172784
135054482
143322a44
1521eae9a
hex17294d4

24286420 has 24 divisors (see below), whose sum is σ = 51143400. Its totient is φ = 9687552.

The previous prime is 24286411. The next prime is 24286429. The reversal of 24286420 is 2468242.

It is an interprime number because it is at equal distance from previous prime (24286411) and next prime (24286429).

It can be written as a sum of positive squares in 4 ways, for example, as 1073296 + 23213124 = 1036^2 + 4818^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24286429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6696 + ... + 9664.

It is an arithmetic number, because the mean of its divisors is an integer number (2130975).

Almost surely, 224286420 is an apocalyptic number.

24286420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24286420 is an abundant number, since it is smaller than the sum of its proper divisors (26856980).

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

24286420 is a wasteful number, since it uses less digits than its factorization.

24286420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387 (or 3385 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 24286420 is about 4928.1254042486. The cubic root of 24286420 is about 289.5928491717.

The spelling of 24286420 in words is "twenty-four million, two hundred eighty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 409 818 1636 2045 2969 4090 5938 8180 11876 14845 29690 59380 1214321 2428642 4857284 6071605 12143210 24286420