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20203212102 = 238365961561
BaseRepresentation
bin10010110100001101…
…001000110101000110
31221010222220111211220
4102310031020311012
5312334010241402
613140424541210
71313440320003
oct226415106506
957128814756
1020203212102
118628206307
123aba021806
131b9c817c98
14d992a28aa
157d3a0bdbc
hex4b4348d46

20203212102 has 32 divisors (see below), whose sum is σ = 40955967360. Its totient is φ = 6643062720.

The previous prime is 20203212061. The next prime is 20203212109. The reversal of 20203212102 is 20121230202.

It is a happy number.

20203212102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203212109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297402 + ... + 358962.

It is an arithmetic number, because the mean of its divisors is an integer number (1279873980).

Almost surely, 220203212102 is an apocalyptic number.

20203212102 is an abundant number, since it is smaller than the sum of its proper divisors (20752755258).

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

20203212102 is a wasteful number, since it uses less digits than its factorization.

20203212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62308.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20203212102 its reverse (20121230202), we get a palindrome (40324442304).

The spelling of 20203212102 in words is "twenty billion, two hundred three million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 3 6 83 166 249 498 659 1318 1977 3954 54697 61561 109394 123122 164091 184683 328182 369366 5109563 10219126 15328689 30657378 40568699 81137398 121706097 243412194 3367202017 6734404034 10101606051 20203212102