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1212133332 = 223631160081
BaseRepresentation
bin100100000111111…
…1010111111010100
310010110211202100010
41020033322333110
54440301231312
6320140120220
742015651264
oct11017727724
93113752303
101212133332
11572243793
12299b36070
13164182077
14b6dab7a4
157163593c
hex483fafd4

1212133332 has 24 divisors (see below), whose sum is σ = 2832811072. Its totient is φ = 403401600.

The previous prime is 1212133331. The next prime is 1212133333. The reversal of 1212133332 is 2333312121.

It is an interprime number because it is at equal distance from previous prime (1212133331) and next prime (1212133333).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1212133299 and 1212133308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212133331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72469 + ... + 87612.

Almost surely, 21212133332 is an apocalyptic number.

1212133332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212133332 is an abundant number, since it is smaller than the sum of its proper divisors (1620677740).

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

1212133332 is a wasteful number, since it uses less digits than its factorization.

1212133332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160719 (or 160717 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 1212133332 is about 34815.7052492119. The cubic root of 1212133332 is about 1066.2281179405.

Adding to 1212133332 its reverse (2333312121), we get a palindrome (3545445453).

The spelling of 1212133332 in words is "one billion, two hundred twelve million, one hundred thirty-three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 631 1262 1893 2524 3786 7572 160081 320162 480243 640324 960486 1920972 101011111 202022222 303033333 404044444 606066666 1212133332