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12203344120420 = 225738358454877
BaseRepresentation
bin1011000110010100111111…
…1111011100101001100100
31121012121222000220201002201
42301211033333130221210
53044414422043323140
641542050000144244
72366443146350515
oct261451777345144
947177860821081
1012203344120420
113985455685192
12145110b308084
136a6a0279b22b
14302905c82a0c
15162684c6049a
hexb194ffdca64

12203344120420 has 24 divisors (see below), whose sum is σ = 25978077760824. Its totient is φ = 4814470008576.

The previous prime is 12203344120417. The next prime is 12203344120433. The reversal of 12203344120420 is 2402144330221.

It can be written as a sum of positive squares in 4 ways, for example, as 274374820864 + 11928969299556 = 523808^2 + 3453834^2 .

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, 4179225979 + ... + 4179228898.

It is an arithmetic number, because the mean of its divisors is an integer number (1082419906701).

Almost surely, 212203344120420 is an apocalyptic number.

12203344120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203344120420 is an abundant number, since it is smaller than the sum of its proper divisors (13774733640404).

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

12203344120420 is a wasteful number, since it uses less digits than its factorization.

12203344120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358454959 (or 8358454957 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12203344120420 its reverse (2402144330221), we get a palindrome (14605488450641).

The spelling of 12203344120420 in words is "twelve trillion, two hundred three billion, three hundred forty-four million, one hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 8358454877 16716909754 33433819508 41792274385 83584548770 167169097540 610167206021 1220334412042 2440668824084 3050836030105 6101672060210 12203344120420