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28854027137 = 13232947101701
BaseRepresentation
bin11010110111110101…
…011000001110000001
32202110212221110010202
4122313311120032001
5433043112332022
621131053534545
72041013120045
oct326765301601
982425843122
1028854027137
1111267389721
1257131a4455
13294ab39050
14157a180025
15b3d211592
hex6b7d58381

28854027137 has 64 divisors (see below), whose sum is σ = 34644879360. Its totient is φ = 23802240000.

The previous prime is 28854027067. The next prime is 28854027157. The reversal of 28854027137 is 73172045882.

It is not a de Polignac number, because 28854027137 - 222 = 28849832833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 28854027091 and 28854027100.

It is not an unprimeable number, because it can be changed into a prime (28854027157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41160887 + ... + 41161587.

It is an arithmetic number, because the mean of its divisors is an integer number (541326240).

Almost surely, 228854027137 is an apocalyptic number.

It is an amenable number.

28854027137 is a deficient number, since it is larger than the sum of its proper divisors (5790852223).

28854027137 is a wasteful number, since it uses less digits than its factorization.

28854027137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 28854027137 in words is "twenty-eight billion, eight hundred fifty-four million, twenty-seven thousand, one hundred thirty-seven".

Divisors: 1 13 23 29 47 101 299 377 611 667 701 1081 1313 1363 2323 2929 4747 8671 9113 14053 16123 17719 20329 30199 31349 32947 38077 61711 67367 70801 109181 137663 209599 264277 407537 428311 467567 757781 875771 920413 955463 1419353 1628423 1789619 2053229 3166249 3327647 6078371 9851153 12421019 21169499 21975649 26691977 41161237 43259411 47224267 76535881 96501763 285683437 613915471 994966453 1254522919 2219540549 28854027137