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244702420 = 22517719713
BaseRepresentation
bin11101001010111…
…01110011010100
3122001110011121121
432211131303110
51000120434140
640140453324
76030636064
oct1645356324
9561404547
10244702420
11116145606
1269b4a244
133b909341
14246db3a4
151673964a
hexe95dcd4

244702420 has 24 divisors (see below), whose sum is σ = 544103784. Its totient is φ = 92123136.

The previous prime is 244702417. The next prime is 244702453. The reversal of 244702420 is 24207442.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 127283524 + 117418896 = 11282^2 + 10836^2 .

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, 359517 + ... + 360196.

It is an arithmetic number, because the mean of its divisors is an integer number (22670991).

Almost surely, 2244702420 is an apocalyptic number.

244702420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244702420 is an abundant number, since it is smaller than the sum of its proper divisors (299401364).

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

244702420 is a wasteful number, since it uses less digits than its factorization.

244702420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719739 (or 719737 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 244702420 is about 15642.9671098548. The cubic root of 244702420 is about 625.4790311528.

Adding to 244702420 its reverse (24207442), we get a palindrome (268909862).

The spelling of 244702420 in words is "two hundred forty-four million, seven hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 719713 1439426 2878852 3598565 7197130 12235121 14394260 24470242 48940484 61175605 122351210 244702420