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20412033211 = 116171757083
BaseRepresentation
bin10011000000101001…
…101110100010111011
31221200112211201120001
4103000221232202323
5313300440030321
613213244413431
71321554263623
oct230051564273
957615751501
1020412033211
118725073739
123b57b47277
131c03b7037b
14db8cdd883
157e7009c91
hex4c0a6e8bb

20412033211 has 4 divisors (see below), whose sum is σ = 20413801912. Its totient is φ = 20410264512.

The previous prime is 20412033181. The next prime is 20412033233. The reversal of 20412033211 is 11233021402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11233021402 = 25616510701.

It is a cyclic number.

It is not a de Polignac number, because 20412033211 - 213 = 20412025019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20412033251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866925 + ... + 890158.

It is an arithmetic number, because the mean of its divisors is an integer number (5103450478).

Almost surely, 220412033211 is an apocalyptic number.

20412033211 is a deficient number, since it is larger than the sum of its proper divisors (1768701).

20412033211 is a wasteful number, since it uses less digits than its factorization.

20412033211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768700.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20412033211 its reverse (11233021402), we get a palindrome (31645054613).

The spelling of 20412033211 in words is "twenty billion, four hundred twelve million, thirty-three thousand, two hundred eleven".

Divisors: 1 11617 1757083 20412033211