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28087277278082 = 2111967194443249
BaseRepresentation
bin1100110001011100101000…
…01011110101001110000010
310200110010011122110000022212
412120232110023311032002
512140140220440344312
6135423041141102122
75626144625455001
oct630562413651602
9120403148400285
1028087277278082
118a49824876060
1231976043b7942
1312898078b93b9
146d1607d6cc38
1533a934105822
hex198b942f5382

28087277278082 has 16 divisors (see below), whose sum is σ = 48379999140000. Its totient is φ = 12094999784640.

The previous prime is 28087277278079. The next prime is 28087277278121.

28087277278082 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×280872772780822 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33597221207 + ... + 33597222042.

It is an arithmetic number, because the mean of its divisors is an integer number (3023749946250).

Almost surely, 228087277278082 is an apocalyptic number.

28087277278082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28087277278082 is a deficient number, since it is larger than the sum of its proper divisors (20292721861918).

28087277278082 is a wasteful number, since it uses less digits than its factorization.

28087277278082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67194443281.

The product of its (nonzero) digits is 157351936, while the sum is 68.

The spelling of 28087277278082 in words is "twenty-eight trillion, eighty-seven billion, two hundred seventy-seven million, two hundred seventy-eight thousand, eighty-two".

Divisors: 1 2 11 19 22 38 209 418 67194443249 134388886498 739138875739 1276694421731 1478277751478 2553388843462 14043638639041 28087277278082