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244353897 = 3239768389
BaseRepresentation
bin11101001000010…
…00101101101001
3122000210110112100
432210020231221
51000023311042
640125204013
76024655014
oct1644105551
9560713470
10244353897
11115a27777
1269a00609
133b816808
142464a37b
15166bb24c
hexe908b69

244353897 has 12 divisors (see below), whose sum is σ = 353849860. Its totient is φ = 162489888.

The previous prime is 244353877. The next prime is 244353931. The reversal of 244353897 is 798353442.

244353897 is a `hidden beast` number, since 24 + 4 + 3 + 538 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 182007081 + 62346816 = 13491^2 + 7896^2 .

It is not a de Polignac number, because 244353897 - 26 = 244353833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244353877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30622 + ... + 37767.

Almost surely, 2244353897 is an apocalyptic number.

It is an amenable number.

244353897 is a deficient number, since it is larger than the sum of its proper divisors (109495963).

244353897 is a wasteful number, since it uses less digits than its factorization.

244353897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68792 (or 68789 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 244353897 is about 15631.8232141999. The cubic root of 244353897 is about 625.1819391386.

The spelling of 244353897 in words is "two hundred forty-four million, three hundred fifty-three thousand, eight hundred ninety-seven".

Divisors: 1 3 9 397 1191 3573 68389 205167 615501 27150433 81451299 244353897