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214422323430 = 235719720272557
BaseRepresentation
bin1100011110110010010…
…0010000000011100110
3202111110110102121220110
43013230210100003212
512003114103322210
6242300530313450
721330404451120
oct3075444200346
9674413377813
10214422323430
1182a328a2267
1235681728886
13172b2287473
14a5416d0210
15589e6ca420
hex31ec9100e6

214422323430 has 128 divisors (see below), whose sum is σ = 591638141952. Its totient is φ = 48718914048.

The previous prime is 214422323429. The next prime is 214422323443. The reversal of 214422323430 is 34323224412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83855712 + ... + 83858268.

It is an arithmetic number, because the mean of its divisors is an integer number (4622172984).

Almost surely, 2214422323430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214422323430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295819070976).

214422323430 is an abundant number, since it is smaller than the sum of its proper divisors (377215818522).

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

214422323430 is a wasteful number, since it uses less digits than its factorization.

214422323430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 214422323430 its reverse (34323224412), we get a palindrome (248745547842).

The spelling of 214422323430 in words is "two hundred fourteen billion, four hundred twenty-two million, three hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 197 210 394 591 985 1182 1379 1970 2027 2557 2758 2955 4054 4137 5114 5910 6081 6895 7671 8274 10135 12162 12785 13790 14189 15342 17899 20270 20685 25570 28378 30405 35798 38355 41370 42567 53697 60810 70945 76710 85134 89495 107394 141890 178990 212835 268485 399319 425670 503729 536970 798638 1007458 1197957 1511187 1996595 2395914 2518645 2795233 3022374 3526103 3993190 5037290 5183039 5590466 5989785 7052206 7555935 8385699 10366078 10578309 11979570 13976165 15111870 15549117 16771398 17630515 21156618 25915195 27952330 31098234 35261030 36281273 41928495 51830390 52891545 72562546 77745585 83856990 105783090 108843819 155491170 181406365 217687638 362812730 544219095 1021058683 1088438190 2042117366 3063176049 5105293415 6126352098 7147410781 10210586830 14294821562 15315880245 21442232343 30631760490 35737053905 42884464686 71474107810 107211161715 214422323430