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28285106676 = 22331433175601
BaseRepresentation
bin11010010101111011…
…000111100111110100
32201000020102021222120
4122111323013213310
5430411441403201
620554411555540
72020634303601
oct322573074764
981006367876
1028285106676
1110aa5229322
12559475bbb0
13288a002918
1415247a76a8
15b082d2536
hex695ec79f4

28285106676 has 48 divisors (see below), whose sum is σ = 68285296128. Its totient is φ = 9103104000.

The previous prime is 28285106669. The next prime is 28285106711. The reversal of 28285106676 is 67660158282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73276 + ... + 248876.

It is an arithmetic number, because the mean of its divisors is an integer number (1422610336).

Almost surely, 228285106676 is an apocalyptic number.

It is an amenable number.

28285106676 is an abundant number, since it is smaller than the sum of its proper divisors (40000189452).

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

28285106676 is a wasteful number, since it uses less digits than its factorization.

28285106676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176072 (or 176070 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 28285106676 in words is "twenty-eight billion, two hundred eighty-five million, one hundred six thousand, six hundred seventy-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 433 866 1299 1732 2598 5196 13423 26846 40269 53692 80538 161076 175601 351202 526803 702404 1053606 2107212 5443631 10887262 16330893 21774524 32661786 65323572 76035233 152070466 228105699 304140932 456211398 912422796 2357092223 4714184446 7071276669 9428368892 14142553338 28285106676