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2012201312 = 251123712411
BaseRepresentation
bin111011111101111…
…1100000101100000
312012020022102021112
41313323330011200
513110110420222
6531400242452
7100602300062
oct16773740540
95166272245
102012201312
119429206a0
12481a70428
13260b59b84
14151353732
15bb9c2be2
hex77efc160

2012201312 has 48 divisors (see below), whose sum is σ = 4325275584. Its totient is φ = 913872000.

The previous prime is 2012201293. The next prime is 2012201329. The reversal of 2012201312 is 2131022102.

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 7 ways as a sum of consecutive naturals, for example, 833387 + ... + 835797.

It is an arithmetic number, because the mean of its divisors is an integer number (90109908).

Almost surely, 22012201312 is an apocalyptic number.

2012201312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2012201312 is an abundant number, since it is smaller than the sum of its proper divisors (2313074272).

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

2012201312 is a wasteful number, since it uses less digits than its factorization.

2012201312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803 (or 4795 counting only the distinct ones).

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

The square root of 2012201312 is about 44857.5669424903. The cubic root of 2012201312 is about 1262.4779722589.

Adding to 2012201312 its reverse (2131022102), we get a palindrome (4143223414).

The spelling of 2012201312 in words is "two billion, twelve million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 2371 2411 4742 4822 9484 9644 18968 19288 26081 26521 37936 38576 52162 53042 75872 77152 104324 106084 208648 212168 417296 424336 834592 848672 5716481 11432962 22865924 45731848 62881291 91463696 125762582 182927392 251525164 503050328 1006100656 2012201312