Search a number
-
+
28612045755 = 325171910931801
BaseRepresentation
bin11010101001011010…
…010010101110111011
32201212000121112002100
4122221122102232323
5432044140431010
621051051234443
72032014243006
oct325132225673
981760545070
1028612045755
1111152832507
125666148a23
13290c9733b7
141555d9053d
15b26d632c0
hex6a9692bbb

28612045755 has 96 divisors (see below), whose sum is σ = 55356575040. Its totient is φ = 13586227200.

The previous prime is 28612045739. The next prime is 28612045807. The reversal of 28612045755 is 55754021682.

28612045755 is a `hidden beast` number, since 28 + 6 + 120 + 457 + 55 = 666.

It is not a de Polignac number, because 28612045755 - 24 = 28612045739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28612045755.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15885855 + ... + 15887655.

It is an arithmetic number, because the mean of its divisors is an integer number (576630990).

Almost surely, 228612045755 is an apocalyptic number.

28612045755 is a deficient number, since it is larger than the sum of its proper divisors (26744529285).

28612045755 is a wasteful number, since it uses less digits than its factorization.

28612045755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 28612045755 in words is "twenty-eight billion, six hundred twelve million, forty-five thousand, seven hundred fifty-five".

Divisors: 1 3 5 9 15 17 19 45 51 57 85 95 153 171 255 285 323 765 855 969 1093 1615 1801 2907 3279 4845 5403 5465 9005 9837 14535 16209 16395 18581 20767 27015 30617 34219 49185 55743 62301 81045 91851 92905 102657 103835 153085 167229 171095 186903 275553 278715 307971 311505 353039 459255 513285 581723 836145 934515 1059117 1377765 1539855 1745169 1765195 1968493 2908615 3177351 5235507 5295585 5905479 8725845 9842465 15886755 17716437 26177535 29527395 33464381 37401367 88582185 100393143 112204101 167321905 187006835 301179429 336612303 501965715 561020505 635823239 1505897145 1683061515 1907469717 3179116195 5722409151 9537348585 28612045755