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212333012 = 222931137431
BaseRepresentation
bin11001010011111…
…11000111010100
3112210112122010122
430221333013110
5413324124022
633023011112
75155541453
oct1451770724
9483478118
10212333012
11a9946a31
125b139a98
1334cb4a48
14202b2b9a
1513993742
hexca7f1d4

212333012 has 48 divisors (see below), whose sum is σ = 400619520. Its totient is φ = 98246400.

The previous prime is 212332997. The next prime is 212333039. The reversal of 212333012 is 210333212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492437 + ... + 492867.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2212333012 is an apocalyptic number.

It is an amenable number.

212333012 is a deficient number, since it is larger than the sum of its proper divisors (188286508).

212333012 is a wasteful number, since it uses less digits than its factorization.

212333012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 212333012 is about 14571.6509702916. The cubic root of 212333012 is about 596.5852433375.

Adding to 212333012 its reverse (210333212), we get a palindrome (422666224).

The spelling of 212333012 in words is "two hundred twelve million, three hundred thirty-three thousand, twelve".

Divisors: 1 2 4 29 31 58 62 116 124 137 274 431 548 862 899 1724 1798 3596 3973 4247 7946 8494 12499 13361 15892 16988 24998 26722 49996 53444 59047 118094 123163 236188 246326 387469 492652 774938 1549876 1712363 1830457 3424726 3660914 6849452 7321828 53083253 106166506 212333012