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213652230 = 235114115791
BaseRepresentation
bin11001011110000…
…01001100000110
3112220000122202120
430233001030012
5414143332410
633111150410
75203004541
oct1457011406
9486018676
10213652230
11aa6680a0
125b675406
133535734c
1420537858
1513b54570
hexcbc1306

213652230 has 64 divisors (see below), whose sum is σ = 573060096. Its totient is φ = 50528000.

The previous prime is 213652211. The next prime is 213652237. The reversal of 213652230 is 32256312.

It is a self number, because there is not a number n which added to its sum of digits gives 213652230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213652237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5635 + ... + 21425.

It is an arithmetic number, because the mean of its divisors is an integer number (8954064).

Almost surely, 2213652230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213652230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286530048).

213652230 is an abundant number, since it is smaller than the sum of its proper divisors (359407866).

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

213652230 is a wasteful number, since it uses less digits than its factorization.

213652230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15853.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 213652230 is about 14616.8474713257. The cubic root of 213652230 is about 597.8182148613.

The spelling of 213652230 in words is "two hundred thirteen million, six hundred fifty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 41 55 66 82 110 123 165 205 246 330 410 451 615 902 1230 1353 2255 2706 4510 6765 13530 15791 31582 47373 78955 94746 157910 173701 236865 347402 473730 521103 647431 868505 1042206 1294862 1737010 1942293 2605515 3237155 3884586 5211030 6474310 7121741 9711465 14243482 19422930 21365223 35608705 42730446 71217410 106826115 213652230