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244253128 = 2374361663
BaseRepresentation
bin11101000111100…
…00000111001000
3122000121100022011
432203300013020
51000012100003
640123105304
76024055150
oct1643600710
9560540264
10244253128
11115968a99
1269972234
133b7ac9a2
1424621760
151669b46d
hexe8f01c8

244253128 has 16 divisors (see below), whose sum is σ = 523399680. Its totient is φ = 104679888.

The previous prime is 244253111. The next prime is 244253129. The reversal of 244253128 is 821352442.

It is a self number, because there is not a number n which added to its sum of digits gives 244253128.

It is not an unprimeable number, because it can be changed into a prime (244253129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2180776 + ... + 2180887.

It is an arithmetic number, because the mean of its divisors is an integer number (32712480).

Almost surely, 2244253128 is an apocalyptic number.

244253128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

244253128 is an abundant number, since it is smaller than the sum of its proper divisors (279146552).

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

244253128 is a wasteful number, since it uses less digits than its factorization.

244253128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361676 (or 4361672 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 244253128 is about 15628.5996813534. The cubic root of 244253128 is about 625.0959878174.

The spelling of 244253128 in words is "two hundred forty-four million, two hundred fifty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 56 4361663 8723326 17446652 30531641 34893304 61063282 122126564 244253128