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20121201302 = 243474978031
BaseRepresentation
bin10010101111010100…
…010010101010010110
31220221021120221011212
4102233110102222112
5312202011420202
613124335101422
71311423250316
oct225724225226
956837527155
1020121201302
118595991394
123a96671872
131b88832597
14d8c435446
157cb70c652
hex4af512a96

20121201302 has 16 divisors (see below), whose sum is σ = 31540810752. Its totient is φ = 9617553960.

The previous prime is 20121201281. The next prime is 20121201313. The reversal of 20121201302 is 20310212102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2484974 + ... + 2493057.

It is an arithmetic number, because the mean of its divisors is an integer number (1971300672).

Almost surely, 220121201302 is an apocalyptic number.

20121201302 is a deficient number, since it is larger than the sum of its proper divisors (11419609450).

20121201302 is a wasteful number, since it uses less digits than its factorization.

20121201302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978123.

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

Adding to 20121201302 its reverse (20310212102), we get a palindrome (40431413404).

The spelling of 20121201302 in words is "twenty billion, one hundred twenty-one million, two hundred one thousand, three hundred two".

Divisors: 1 2 43 47 86 94 2021 4042 4978031 9956062 214055333 233967457 428110666 467934914 10060600651 20121201302