Search a number
-
+
28055167488 = 29326088361
BaseRepresentation
bin11010001000001101…
…111110001000000000
32200102012202011201100
4122020031332020000
5424424110324423
620515515334400
72012142663135
oct321015761000
980365664640
1028055167488
1110997457637
12552b751400
13285149522a
14150203058c
15ae3012343
hex68837e200

28055167488 has 60 divisors (see below), whose sum is σ = 80969126238. Its totient is φ = 9351720960.

The previous prime is 28055167477. The next prime is 28055167513. The reversal of 28055167488 is 88476155082.

28055167488 is a `hidden beast` number, since 2 + 8 + 0 + 551 + 6 + 7 + 4 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27758225664 + 296941824 = 166608^2 + 17232^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3039573 + ... + 3048788.

Almost surely, 228055167488 is an apocalyptic number.

It is an amenable number.

28055167488 is an abundant number, since it is smaller than the sum of its proper divisors (52913958750).

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

28055167488 is an equidigital number, since it uses as much as digits as its factorization.

28055167488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088385 (or 6088366 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 28055167488 in words is "twenty-eight billion, fifty-five million, one hundred sixty-seven thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1152 1536 2304 4608 6088361 12176722 18265083 24353444 36530166 48706888 54795249 73060332 97413776 109590498 146120664 194827552 219180996 292241328 389655104 438361992 584482656 779310208 876723984 1168965312 1558620416 1753447968 2337930624 3117240832 3506895936 4675861248 7013791872 9351722496 14027583744 28055167488