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20616048125 = 5471464587
BaseRepresentation
bin10011001100110011…
…111110110111111101
31222012202201202101222
4103030303332313331
5314210202020000
613245413243125
71326612342401
oct231463766775
958182652358
1020616048125
11881a249102
123bb43334a5
131c37201c5a
14dd8049101
15809da8a85
hex4cccfedfd

20616048125 has 20 divisors (see below), whose sum is σ = 26124712416. Its totient is φ = 16260510000.

The previous prime is 20616048029. The next prime is 20616048139. The reversal of 20616048125 is 52184061602.

It is not a de Polignac number, because 20616048125 - 232 = 16321080829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 187919 + ... + 276668.

Almost surely, 220616048125 is an apocalyptic number.

20616048125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20616048125 is a deficient number, since it is larger than the sum of its proper divisors (5508664291).

20616048125 is an frugal number, since it uses more digits than its factorization.

20616048125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464678 (or 464663 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 20616048125 in words is "twenty billion, six hundred sixteen million, forty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 71 125 355 625 1775 8875 44375 464587 2322935 11614675 32985677 58073375 164928385 290366875 824641925 4123209625 20616048125