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212420214 = 23271347479
BaseRepresentation
bin11001010100101…
…00011001110110
3112210201001202100
430222110121312
5413334421324
633024522530
75156353626
oct1452243166
9483631670
10212420214
11a99a64a6
125b180446
1335015646
14202d6886
15139ae4c9
hexca94676

212420214 has 48 divisors (see below), whose sum is σ = 469048320. Its totient is φ = 69462960.

The previous prime is 212420207. The next prime is 212420231. The reversal of 212420214 is 412024212.

212420214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443227 + ... + 443705.

It is an arithmetic number, because the mean of its divisors is an integer number (9771840).

Almost surely, 2212420214 is an apocalyptic number.

212420214 is an abundant number, since it is smaller than the sum of its proper divisors (256628106).

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

212420214 is a wasteful number, since it uses less digits than its factorization.

212420214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 212420214 is about 14574.6428429653. The cubic root of 212420214 is about 596.6669017126. Note that the first 3 decimals are identical.

Adding to 212420214 its reverse (412024212), we get a palindrome (624444426).

The spelling of 212420214 in words is "two hundred twelve million, four hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 71 142 213 347 426 479 639 694 958 1041 1278 1437 2082 2874 3123 4311 6246 8622 24637 34009 49274 68018 73911 102027 147822 166213 204054 221733 306081 332426 443466 498639 612162 997278 1495917 2991834 11801123 23602246 35403369 70806738 106210107 212420214