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244242420 = 22357015807
BaseRepresentation
bin11101000111011…
…01011111110100
3122000120210121120
432203231133310
51000011224140
640122543540
76024012012
oct1643553764
9560523546
10244242420
11115960a44
1269967bb0
133b7a7b56
142461b8b2
15166981d0
hexe8ed7f4

244242420 has 48 divisors (see below), whose sum is σ = 684972288. Its totient is φ = 65027200.

The previous prime is 244242407. The next prime is 244242421. The reversal of 244242420 is 24242442.

244242420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244242421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39157 + ... + 44963.

It is an arithmetic number, because the mean of its divisors is an integer number (14270256).

Almost surely, 2244242420 is an apocalyptic number.

244242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244242420 is an abundant number, since it is smaller than the sum of its proper divisors (440729868).

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

244242420 is a wasteful number, since it uses less digits than its factorization.

244242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520 (or 6518 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 244242420 is about 15628.2571005215. The cubic root of 244242420 is about 625.0868529966.

Adding to 244242420 its reverse (24242442), we get a palindrome (268484862).

The spelling of 244242420 in words is "two hundred forty-four million, two hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 701 1402 2103 2804 3505 4206 5807 7010 8412 10515 11614 14020 17421 21030 23228 29035 34842 42060 58070 69684 87105 116140 174210 348420 4070707 8141414 12212121 16282828 20353535 24424242 40707070 48848484 61060605 81414140 122121210 244242420