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20248910445 = 351349927363
BaseRepresentation
bin10010110110111011…
…011101101001101101
31221021011220020012010
4102312323131221231
5312432210113240
613145140231433
71314533620221
oct226673355155
957234806163
1020248910445
118650a89135
123b1139b579
131ba912841a
14da139a781
157d7a37280
hex4b6edda6d

20248910445 has 8 divisors (see below), whose sum is σ = 32398256736. Its totient is φ = 10799418896.

The previous prime is 20248910431. The next prime is 20248910449. The reversal of 20248910445 is 54401984202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20248910445 - 213 = 20248902253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20248910449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674963667 + ... + 674963696.

It is an arithmetic number, because the mean of its divisors is an integer number (4049782092).

Almost surely, 220248910445 is an apocalyptic number.

It is an amenable number.

20248910445 is a deficient number, since it is larger than the sum of its proper divisors (12149346291).

20248910445 is a wasteful number, since it uses less digits than its factorization.

20248910445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349927371.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 20248910445 in words is "twenty billion, two hundred forty-eight million, nine hundred ten thousand, four hundred forty-five".

Divisors: 1 3 5 15 1349927363 4049782089 6749636815 20248910445