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338808385 = 5175967559
BaseRepresentation
bin10100001100011…
…100111001000001
3212121112020201201
4110030130321001
51143213332020
653341501201
711252552356
oct2414347101
9777466651
10338808385
11164280833
1295571801
1355268146
1432dd662d
151eb27a0a
hex1431ce41

338808385 has 16 divisors (see below), whose sum is σ = 437788800. Its totient is φ = 250775296.

The previous prime is 338808373. The next prime is 338808389. The reversal of 338808385 is 583808833.

It is not a de Polignac number, because 338808385 - 29 = 338807873 is a prime.

It is a super-2 number, since 2×3388083852 = 229582243492616450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338808389) 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, 28765 + ... + 38794.

It is an arithmetic number, because the mean of its divisors is an integer number (27361800).

Almost surely, 2338808385 is an apocalyptic number.

It is an amenable number.

338808385 is a deficient number, since it is larger than the sum of its proper divisors (98980415).

338808385 is a wasteful number, since it uses less digits than its factorization.

338808385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67640.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 338808385 is about 18406.7483548833. The cubic root of 338808385 is about 697.1368664283.

The spelling of 338808385 in words is "three hundred thirty-eight million, eight hundred eight thousand, three hundred eighty-five".

Divisors: 1 5 17 59 85 295 1003 5015 67559 337795 1148503 3985981 5742515 19929905 67761677 338808385