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20122232268 = 2231676852689
BaseRepresentation
bin10010101111011000…
…001110010111001100
31220221100112022101210
4102233120032113030
5312202242413033
613124413134420
71311435103125
oct225730162714
956840468353
1020122232268
118596525a26
123a96a8a410
131b88b03918
14d8c62304c
157cb862d63
hex4af60e5cc

20122232268 has 12 divisors (see below), whose sum is σ = 46951875320. Its totient is φ = 6707410752.

The previous prime is 20122232261. The next prime is 20122232269. The reversal of 20122232268 is 86223222102.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20122232261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838426333 + ... + 838426356.

Almost surely, 220122232268 is an apocalyptic number.

It is an amenable number.

20122232268 is an abundant number, since it is smaller than the sum of its proper divisors (26829643052).

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

20122232268 is a wasteful number, since it uses less digits than its factorization.

20122232268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676852696 (or 1676852694 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 20122232268 in words is "twenty billion, one hundred twenty-two million, two hundred thirty-two thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1676852689 3353705378 5030558067 6707410756 10061116134 20122232268