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213230109 = 3167425609
BaseRepresentation
bin11001011010110…
…10001000011101
3112212020012201110
430231122020131
5414041330414
633054132233
75166266061
oct1455321035
9485205643
10213230109
11aa3a9a34
125b4b1079
133523a181
1420467aa1
1513abe459
hexcb5a21d

213230109 has 8 divisors (see below), whose sum is σ = 286009920. Its totient is φ = 141301856.

The previous prime is 213230107. The next prime is 213230119. The reversal of 213230109 is 901032312.

It is a happy number.

213230109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213230109 - 21 = 213230107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213230107) 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, 212304 + ... + 213305.

It is an arithmetic number, because the mean of its divisors is an integer number (35751240).

Almost surely, 2213230109 is an apocalyptic number.

It is an amenable number.

213230109 is a deficient number, since it is larger than the sum of its proper divisors (72779811).

213230109 is a wasteful number, since it uses less digits than its factorization.

213230109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425779.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 213230109 is about 14602.4007957596. The cubic root of 213230109 is about 597.4242444060.

The spelling of 213230109 in words is "two hundred thirteen million, two hundred thirty thousand, one hundred nine".

Divisors: 1 3 167 501 425609 1276827 71076703 213230109