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213882838 = 21323393517
BaseRepresentation
bin11001011111110…
…01011111010110
3112220110101002121
430233321133112
5414223222323
633120130154
75204655061
oct1457713726
9486411077
10213882838
11aa805384
125b76695a
13354082c0
14205978d8
1513b9ca5d
hexcbf97d6

213882838 has 16 divisors (see below), whose sum is σ = 345749040. Its totient is φ = 98644896.

The previous prime is 213882833. The next prime is 213882839. The reversal of 213882838 is 838288312.

It is a junction number, because it is equal to n+sod(n) for n = 213882794 and 213882803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213882833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59056 + ... + 62572.

It is an arithmetic number, because the mean of its divisors is an integer number (21609315).

Almost surely, 2213882838 is an apocalyptic number.

213882838 is a deficient number, since it is larger than the sum of its proper divisors (131866202).

213882838 is a wasteful number, since it uses less digits than its factorization.

213882838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871.

The product of its digits is 147456, while the sum is 43.

The square root of 213882838 is about 14624.7337753547. The cubic root of 213882838 is about 598.0332248517.

The spelling of 213882838 in words is "two hundred thirteen million, eight hundred eighty-two thousand, eight hundred thirty-eight".

Divisors: 1 2 13 26 2339 3517 4678 7034 30407 45721 60814 91442 8226263 16452526 106941419 213882838