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12000210020 = 225990160601
BaseRepresentation
bin10110010110100010…
…01010110001100100
31010222022111211102222
423023101022301210
5144034023210040
65302434051512
7603243050021
oct131321126144
933868454388
1012000210020
1150a8895447
1223aaa19b98
1311932092b6
1481ba74548
154a37b2bb5
hex2cb44ac64

12000210020 has 24 divisors (see below), whose sum is σ = 25203402168. Its totient is φ = 4799520000.

The previous prime is 12000209989. The next prime is 12000210031. The reversal of 12000210020 is 2001200021.

It can be written as a sum of positive squares in 4 ways, for example, as 7466342464 + 4533867556 = 86408^2 + 67334^2 .

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, 167720 + ... + 228320.

It is an arithmetic number, because the mean of its divisors is an integer number (1050141757).

Almost surely, 212000210020 is an apocalyptic number.

12000210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000210020 is an abundant number, since it is smaller than the sum of its proper divisors (13203192148).

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

12000210020 is a wasteful number, since it uses less digits than its factorization.

12000210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70511 (or 70509 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 12000210020 its reverse (2001200021), we get a palindrome (14001410041).

Subtracting from 12000210020 its reverse (2001200021), we obtain a palindrome (9999009999).

The spelling of 12000210020 in words is "twelve billion, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 9901 19802 39604 49505 60601 99010 121202 198020 242404 303005 606010 1212020 600010501 1200021002 2400042004 3000052505 6000105010 12000210020