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213244329 = 3251283193
BaseRepresentation
bin11001011010111…
…01100110101001
3112212020221020010
430231131212221
5414042304304
633054322133
75166355404
oct1455354651
9485227203
10213244329
11aa409691
125b4b9349
133524379c
142046cd3b
1513ac3789
hexcb5d9a9

213244329 has 8 divisors (see below), whose sum is σ = 285459552. Its totient is φ = 141596000.

The previous prime is 213244327. The next prime is 213244331. The reversal of 213244329 is 923442312.

It is an interprime number because it is at equal distance from previous prime (213244327) and next prime (213244331).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213244329 - 21 = 213244327 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213244296 and 213244305.

It is not an unprimeable number, because it can be changed into a prime (213244327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140844 + ... + 142349.

It is an arithmetic number, because the mean of its divisors is an integer number (35682444).

Almost surely, 2213244329 is an apocalyptic number.

It is an amenable number.

213244329 is a deficient number, since it is larger than the sum of its proper divisors (72215223).

213244329 is a wasteful number, since it uses less digits than its factorization.

213244329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283447.

The product of its digits is 10368, while the sum is 30.

The square root of 213244329 is about 14602.8876938775. The cubic root of 213244329 is about 597.4375245567.

The spelling of 213244329 in words is "two hundred thirteen million, two hundred forty-four thousand, three hundred twenty-nine".

Divisors: 1 3 251 753 283193 849579 71081443 213244329