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1230012212 = 2211132279473
BaseRepresentation
bin100100101010000…
…0111111100110100
310011201111002112212
41021110013330310
510004340342322
6322015232552
742323634302
oct11124077464
93151432485
101230012212
11581345420
122a3b18758
13167aa1ba0
14b9503272
1572eb80e2
hex49507f34

1230012212 has 48 divisors (see below), whose sum is σ = 2540244672. Its totient is φ = 513761280.

The previous prime is 1230012191. The next prime is 1230012241. The reversal of 1230012212 is 2122100321.

It is a happy number.

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, 125108 + ... + 134580.

It is an arithmetic number, because the mean of its divisors is an integer number (52921764).

Almost surely, 21230012212 is an apocalyptic number.

It is an amenable number.

1230012212 is an abundant number, since it is smaller than the sum of its proper divisors (1310232460).

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

1230012212 is a wasteful number, since it uses less digits than its factorization.

1230012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9728 (or 9726 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1230012212 is about 35071.5299352623. The cubic root of 1230012212 is about 1071.4448155980. Note that the first 3 decimals are identical.

Adding to 1230012212 its reverse (2122100321), we get a palindrome (3352112533).

The spelling of 1230012212 in words is "one billion, two hundred thirty million, twelve thousand, two hundred twelve".

Divisors: 1 2 4 11 13 22 26 44 52 143 227 286 454 572 908 2497 2951 4994 5902 9473 9988 11804 18946 32461 37892 64922 104203 123149 129844 208406 246298 416812 492596 1354639 2150371 2709278 4300742 5418556 8601484 23654081 27954823 47308162 55909646 94616324 111819292 307503053 615006106 1230012212