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20624048268 = 22310915767621
BaseRepresentation
bin10011001101010010…
…100000000010001100
31222020022210012112120
4103031102200002030
5314214224021033
613250300532540
71330040342415
oct231522400214
958208705476
1020624048268
11882381279a
123bb6b51150
131c38a73475
14dd912c80c
1580a9391b3
hex4cd4a008c

20624048268 has 24 divisors (see below), whose sum is σ = 48564275760. Its totient is φ = 6811611840.

The previous prime is 20624048267. The next prime is 20624048303. The reversal of 20624048268 is 86284042602.

It is not an unprimeable number, because it can be changed into a prime (20624048267) 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, 7882503 + ... + 7885118.

It is an arithmetic number, because the mean of its divisors is an integer number (2023511490).

Almost surely, 220624048268 is an apocalyptic number.

It is an amenable number.

20624048268 is an abundant number, since it is smaller than the sum of its proper divisors (27940227492).

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

20624048268 is a wasteful number, since it uses less digits than its factorization.

20624048268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15767737 (or 15767735 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 20624048268 in words is "twenty billion, six hundred twenty-four million, forty-eight thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 15767621 31535242 47302863 63070484 94605726 189211452 1718670689 3437341378 5156012067 6874682756 10312024134 20624048268