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244978893 = 3227319967
BaseRepresentation
bin11101001101000…
…01010011001101
3122001222012212100
432212201103031
51000203311033
640150425313
76033200115
oct1646412315
9561865770
10244978893
111163142a5
126a062239
133b9a5133
1424770045
1516791513
hexe9a14cd

244978893 has 12 divisors (see below), whose sum is σ = 354023488. Its totient is φ = 163243080.

The previous prime is 244978871. The next prime is 244978901. The reversal of 244978893 is 398879442.

244978893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 244978893 - 26 = 244978829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244978493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19596 + ... + 29562.

Almost surely, 2244978893 is an apocalyptic number.

It is an amenable number.

244978893 is a deficient number, since it is larger than the sum of its proper divisors (109044595).

244978893 is a wasteful number, since it uses less digits than its factorization.

244978893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704 (or 12701 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 244978893 is about 15651.8015895934. The cubic root of 244978893 is about 625.7145048878.

The spelling of 244978893 in words is "two hundred forty-four million, nine hundred seventy-eight thousand, eight hundred ninety-three".

Divisors: 1 3 9 2731 8193 9967 24579 29901 89703 27219877 81659631 244978893