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244793140 = 22523532159
BaseRepresentation
bin11101001011100…
…11111100110100
3122001121210001121
432211303330310
51000131340030
640142433324
76031464424
oct1645637464
9561553047
10244793140
111161a7789
1269b92844
133b93b717
1424722484
151675647a
hexe973f34

244793140 has 24 divisors (see below), whose sum is σ = 536417280. Its totient is φ = 93659808.

The previous prime is 244793123. The next prime is 244793141. The reversal of 244793140 is 41397442.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 244793096 and 244793105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244793141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265620 + ... + 266539.

It is an arithmetic number, because the mean of its divisors is an integer number (22350720).

Almost surely, 2244793140 is an apocalyptic number.

244793140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244793140 is an abundant number, since it is smaller than the sum of its proper divisors (291624140).

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

244793140 is a wasteful number, since it uses less digits than its factorization.

244793140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532191 (or 532189 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 244793140 is about 15645.8665467912. The cubic root of 244793140 is about 625.5563174705.

The spelling of 244793140 in words is "two hundred forty-four million, seven hundred ninety-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 532159 1064318 2128636 2660795 5321590 10643180 12239657 24479314 48958628 61198285 122396570 244793140