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12302322220 = 225615116111
BaseRepresentation
bin10110111010100011…
…01000101000101100
31011202100222201110201
423131101220220230
5200143343302340
65352425243244
7613602004426
oct133521505054
934670881421
1012302322220
115243381851
122474033524
131210996606
14849c37816
154c008c79a
hex2dd468a2c

12302322220 has 12 divisors (see below), whose sum is σ = 25834876704. Its totient is φ = 4920928880.

The previous prime is 12302322173. The next prime is 12302322313. The reversal of 12302322220 is 2222320321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307558036 + ... + 307558075.

It is an arithmetic number, because the mean of its divisors is an integer number (2152906392).

Almost surely, 212302322220 is an apocalyptic number.

12302322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302322220 is an abundant number, since it is smaller than the sum of its proper divisors (13532554484).

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

12302322220 is a wasteful number, since it uses less digits than its factorization.

12302322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615116120 (or 615116118 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12302322220 its reverse (2222320321), we get a palindrome (14524642541).

The spelling of 12302322220 in words is "twelve billion, three hundred two million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 615116111 1230232222 2460464444 3075580555 6151161110 12302322220