Search a number
-
+
20610054460 = 22513120293877
BaseRepresentation
bin10011001100011101…
…000111100100111100
31222012100110020122101
4103030131013210330
5314202133220320
613245040554444
71326510400222
oct231435074474
958170406571
1020610054460
118816924a66
123bb2322a24
131c35bb3ac8
14dd7328b12
158095c2c0a
hex4cc74793c

20610054460 has 48 divisors (see below), whose sum is σ = 43644252960. Its totient is φ = 8174949120.

The previous prime is 20610054419. The next prime is 20610054469. The reversal of 20610054460 is 6445001602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610054469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5314042 + ... + 5317918.

It is an arithmetic number, because the mean of its divisors is an integer number (909255270).

Almost surely, 220610054460 is an apocalyptic number.

20610054460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20610054460 is an abundant number, since it is smaller than the sum of its proper divisors (23034198500).

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

20610054460 is a wasteful number, since it uses less digits than its factorization.

20610054460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046 (or 6044 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20610054460 in words is "twenty billion, six hundred ten million, fifty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2029 2620 3877 4058 7754 8116 10145 15508 19385 20290 38770 40580 77540 265799 507887 531598 1015774 1063196 1328995 2031548 2539435 2657990 5078870 5315980 7866433 10157740 15732866 31465732 39332165 78664330 157328660 1030502723 2061005446 4122010892 5152513615 10305027230 20610054460