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20322626441 = 131563278957
BaseRepresentation
bin10010111011010100…
…101010101110001001
31221110022121101112012
4102323110222232021
5313110043021231
613200332225305
71316420321525
oct227324525611
957408541465
1020322626441
118689658047
123b3200b235
131bbb498460
14dab0a8d85
157de248e2b
hex4bb52ab89

20322626441 has 4 divisors (see below), whose sum is σ = 21885905412. Its totient is φ = 18759347472.

The previous prime is 20322626437. The next prime is 20322626477. The reversal of 20322626441 is 14462622302.

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: 14462622302 = 27231311151.

It can be written as a sum of positive squares in 2 ways, for example, as 5914225216 + 14408401225 = 76904^2 + 120035^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322626441 - 22 = 20322626437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20322626398 and 20322626407.

It is not an unprimeable number, because it can be changed into a prime (20322626411) 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, 781639466 + ... + 781639491.

It is an arithmetic number, because the mean of its divisors is an integer number (5471476353).

Almost surely, 220322626441 is an apocalyptic number.

It is an amenable number.

20322626441 is a deficient number, since it is larger than the sum of its proper divisors (1563278971).

20322626441 is a wasteful number, since it uses less digits than its factorization.

20322626441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563278970.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 20322626441 in words is "twenty billion, three hundred twenty-two million, six hundred twenty-six thousand, four hundred forty-one".

Divisors: 1 13 1563278957 20322626441