Search a number
-
+
28056083144 = 2317613336533
BaseRepresentation
bin11010001000010001…
…011101101011001000
32200102021110200202112
4122020101131223020
5424424324130034
620515551121452
72012153525525
oct321021355310
980367420675
1028056083144
1110997a22581
12552bb13288
132851725c3b
1415021cc14c
15ae31437ce
hex68845dac8

28056083144 has 32 divisors (see below), whose sum is σ = 55790606520. Its totient is φ = 13181285376.

The previous prime is 28056083141. The next prime is 28056083173. The reversal of 28056083144 is 44138065082.

It can be written as a sum of positive squares in 4 ways, for example, as 19116380644 + 8939702500 = 138262^2 + 94550^2 .

It is not an unprimeable number, because it can be changed into a prime (28056083141) 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, 84899 + ... + 251634.

Almost surely, 228056083144 is an apocalyptic number.

It is an amenable number.

28056083144 is a deficient number, since it is larger than the sum of its proper divisors (27734523376).

28056083144 is a wasteful number, since it uses less digits than its factorization.

28056083144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337169 (or 337165 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 28056083144 in words is "twenty-eight billion, fifty-six million, eighty-three thousand, one hundred forty-four".

Divisors: 1 2 4 8 17 34 68 136 613 1226 2452 4904 10421 20842 41684 83368 336533 673066 1346132 2692264 5721061 11442122 22884244 45768488 206294729 412589458 825178916 1650357832 3507010393 7014020786 14028041572 28056083144