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213213350 = 25273143457
BaseRepresentation
bin11001011010101…
…10000010100110
3112212012100201202
430231112002212
5414040311400
633053522502
75166166160
oct1455260246
9485170652
10213213350
11aa398389
125b4a3432
133523265c
1420461930
1513ab94d5
hexcb560a6

213213350 has 96 divisors (see below), whose sum is σ = 479778816. Its totient is φ = 68947200.

The previous prime is 213213349. The next prime is 213213367. The reversal of 213213350 is 53312312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466322 + ... + 466778.

It is an arithmetic number, because the mean of its divisors is an integer number (4997696).

Almost surely, 2213213350 is an apocalyptic number.

213213350 is an abundant number, since it is smaller than the sum of its proper divisors (266565466).

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

213213350 is a wasteful number, since it uses less digits than its factorization.

213213350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 213213350 is about 14601.8269404893. The cubic root of 213213350 is about 597.4085923087.

Adding to 213213350 its reverse (53312312), we get a palindrome (266525662).

The spelling of 213213350 in words is "two hundred thirteen million, two hundred thirteen thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 31 35 43 50 62 70 86 155 175 215 217 301 310 350 430 434 457 602 775 914 1075 1085 1333 1505 1550 2150 2170 2285 2666 3010 3199 4570 5425 6398 6665 7525 9331 10850 11425 13330 14167 15050 15995 18662 19651 22850 28334 31990 33325 39302 46655 66650 70835 79975 93310 98255 99169 137557 141670 159950 196510 198338 233275 275114 354175 466550 491275 495845 609181 687785 708350 982550 991690 1218362 1375570 2479225 3045905 3438925 4264267 4958450 6091810 6877850 8528534 15229525 21321335 30459050 42642670 106606675 213213350