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213313019 = 19149151499
BaseRepresentation
bin11001011011011…
…10010111111011
3112212101102110012
430231232113323
5414102004034
633100012135
75200062563
oct1455562773
9485342405
10213313019
11aa456257
125b53104b
1335268b2a
1420489da3
1513ad8cce
hexcb6e5fb

213313019 has 16 divisors (see below), whose sum is σ = 228000000. Its totient is φ = 199000800.

The previous prime is 213313007. The next prime is 213313021. The reversal of 213313019 is 910313312.

It is a cyclic number.

It is not a de Polignac number, because 213313019 - 28 = 213312763 is a prime.

It is a super-2 number, since 2×2133130192 = 91004888149788722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213312985 and 213313003.

It is not an unprimeable number, because it can be changed into a prime (213313049) 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 15 ways as a sum of consecutive naturals, for example, 427232 + ... + 427730.

It is an arithmetic number, because the mean of its divisors is an integer number (14250000).

Almost surely, 2213313019 is an apocalyptic number.

213313019 is a deficient number, since it is larger than the sum of its proper divisors (14686981).

213313019 is a wasteful number, since it uses less digits than its factorization.

213313019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 213313019 is about 14605.2394365858. The cubic root of 213313019 is about 597.5016662827.

The spelling of 213313019 in words is "two hundred thirteen million, three hundred thirteen thousand, nineteen".

Divisors: 1 19 149 151 499 2831 2869 9481 22499 74351 75349 427481 1412669 1431631 11227001 213313019