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28228182785033 = 71129163111769431
BaseRepresentation
bin1100110101100011000101…
…10011101011110000001001
310200221120212121000102002112
412122301202303223300021
512144442304243110113
6140011503111112105
75642263453510160
oct632614263536011
9120846777012075
1028228182785033
118aa3561302a50
1231ba989372635
131299ba1c5250a
146d837394c3d7
1533e42e5905a8
hex19ac62cebc09

28228182785033 has 64 divisors (see below), whose sum is σ = 36663828664320. Its totient is φ = 21088012780800.

The previous prime is 28228182784969. The next prime is 28228182785039. The reversal of 28228182785033 is 33058728182282.

It is a happy number.

It is not a de Polignac number, because 28228182785033 - 26 = 28228182784969 is a prime.

It is a super-2 number, since 2×282281827850332 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28228182785039) 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, 406529828 + ... + 406599258.

It is an arithmetic number, because the mean of its divisors is an integer number (572872322880).

Almost surely, 228228182785033 is an apocalyptic number.

It is an amenable number.

28228182785033 is a deficient number, since it is larger than the sum of its proper divisors (8435645879287).

28228182785033 is a wasteful number, since it uses less digits than its factorization.

28228182785033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70758.

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 28228182785033 in words is "twenty-eight trillion, two hundred twenty-eight billion, one hundred eighty-two million, seven hundred eighty-five thousand, thirty-three".

Divisors: 1 7 11 29 77 163 203 319 1117 1141 1793 2233 4727 7819 12287 12551 32393 33089 51997 69431 86009 182071 226751 356323 363979 486017 763741 1274497 2002781 2013499 2494261 5280059 5346187 11317253 14019467 14094493 22148489 36960413 58080649 77554427 79220771 124489783 155039423 328200337 406564543 542880989 853098697 871428481 2249078383 2297402359 3610203707 5971690879 12641371601 15743548681 24739862213 25271425949 88489601207 139055087611 173179035491 366599776429 973385613277 2566198435003 4032597540719 28228182785033