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212814382 = 21110699049
BaseRepresentation
bin11001010111101…
…00101000101110
3112211110002110011
430223310220232
5413440030012
633041203434
75162615044
oct1453645056
9484402404
10212814382
11aa145660
125b33057a
1335122b91
142039a394
1513a3b1a7
hexcaf4a2e

212814382 has 16 divisors (see below), whose sum is σ = 348606000. Its totient is φ = 96632640.

The previous prime is 212814379. The next prime is 212814401. The reversal of 212814382 is 283418212.

It is a happy number.

It is a super-2 number, since 2×2128143822 = 90579922372083848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18994 + ... + 28042.

It is an arithmetic number, because the mean of its divisors is an integer number (21787875).

Almost surely, 2212814382 is an apocalyptic number.

212814382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212814382 is a deficient number, since it is larger than the sum of its proper divisors (135791618).

212814382 is a wasteful number, since it uses less digits than its factorization.

212814382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131.

The product of its digits is 6144, while the sum is 31.

The square root of 212814382 is about 14588.1589654075. The cubic root of 212814382 is about 597.0357330231.

The spelling of 212814382 in words is "two hundred twelve million, eight hundred fourteen thousand, three hundred eighty-two".

Divisors: 1 2 11 22 1069 2138 9049 11759 18098 23518 99539 199078 9673381 19346762 106407191 212814382