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213245364 = 22369125717
BaseRepresentation
bin11001011010111…
…01110110110100
3112212020222122110
430231131312310
5414042322424
633054331020
75166361413
oct1455356664
9485228573
10213245364
11aa40a442
125b4b9a70
13352440b7
142046d47a
1513ac3c29
hexcb5ddb4

213245364 has 24 divisors (see below), whose sum is σ = 498311968. Its totient is φ = 70976160.

The previous prime is 213245309. The next prime is 213245413. The reversal of 213245364 is 463542312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567 + ... + 21150.

Almost surely, 2213245364 is an apocalyptic number.

It is an amenable number.

213245364 is an abundant number, since it is smaller than the sum of its proper divisors (285066604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213245364 is a wasteful number, since it uses less digits than its factorization.

213245364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415 (or 26413 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 213245364 is about 14602.9231320308. The cubic root of 213245364 is about 597.4384911269.

Adding to 213245364 its reverse (463542312), we get a palindrome (676787676).

The spelling of 213245364 in words is "two hundred thirteen million, two hundred forty-five thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 12 691 1382 2073 2764 4146 8292 25717 51434 77151 102868 154302 308604 17770447 35540894 53311341 71081788 106622682 213245364