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20212012002 = 23713247314969
BaseRepresentation
bin10010110100101110…
…101101001111100010
31221011121110121001010
4102310232231033202
5312343233341002
613141341321350
71313605160460
oct226456551742
957147417033
1020212012002
118632176856
123b00b66256
131ba15a9520
14d9a513830
157d469946c
hex4b4bad3e2

20212012002 has 64 divisors (see below), whose sum is σ = 49776088320. Its totient is φ = 5328129024.

The previous prime is 20212011973. The next prime is 20212012003. The reversal of 20212012002 is 20021021202.

It is not an unprimeable number, because it can be changed into a prime (20212012003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1342774 + ... + 1357742.

It is an arithmetic number, because the mean of its divisors is an integer number (777751380).

Almost surely, 220212012002 is an apocalyptic number.

20212012002 is an abundant number, since it is smaller than the sum of its proper divisors (29564076318).

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

20212012002 is a wasteful number, since it uses less digits than its factorization.

20212012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17467.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20212012002 its reverse (20021021202), we get a palindrome (40233033204).

The spelling of 20212012002 in words is "twenty billion, two hundred twelve million, twelve thousand, two".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 2473 4946 7419 14838 14969 17311 29938 32149 34622 44907 51933 64298 89814 96447 103866 104783 192894 194597 209566 225043 314349 389194 450086 583791 628698 675129 1167582 1350258 1362179 2724358 4086537 8173074 37018337 74036674 111055011 222110022 259128359 481238381 518256718 777385077 962476762 1443715143 1554770154 2887430286 3368668667 6737337334 10106006001 20212012002