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212838339 = 37411791381
BaseRepresentation
bin11001010111110…
…10011111000011
3112211111022022110
430223322133003
5413441311324
633041510403
75163044640
oct1453723703
9484438273
10212838339
11aa16165a
125b342403
1335130a5c
14203a4dc7
1513a43329
hexcafa7c3

212838339 has 32 divisors (see below), whose sum is σ = 334333440. Its totient is φ = 117907200.

The previous prime is 212838299. The next prime is 212838371. The reversal of 212838339 is 933838212.

It is not a de Polignac number, because 212838339 - 28 = 212838083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212838297 and 212838306.

It is not an unprimeable number, because it can be changed into a prime (212838239) 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 31 ways as a sum of consecutive naturals, for example, 153429 + ... + 154809.

It is an arithmetic number, because the mean of its divisors is an integer number (10447920).

Almost surely, 2212838339 is an apocalyptic number.

212838339 is a deficient number, since it is larger than the sum of its proper divisors (121495101).

212838339 is a wasteful number, since it uses less digits than its factorization.

212838339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its digits is 62208, while the sum is 39.

The square root of 212838339 is about 14588.9800534513. The cubic root of 212838339 is about 597.0581354069.

The spelling of 212838339 in words is "two hundred twelve million, eight hundred thirty-eight thousand, three hundred thirty-nine".

Divisors: 1 3 7 21 41 123 179 287 537 861 1253 1381 3759 4143 7339 9667 22017 29001 51373 56621 154119 169863 247199 396347 741597 1189041 1730393 5191179 10135159 30405477 70946113 212838339