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28073824977 = 3111138119283
BaseRepresentation
bin11010001001010101…
…001001001011010001
32200110111212001222110
4122021111021023101
5424443344344402
620521423255533
72012460401142
oct321125111321
980414761873
1028073824977
11109a6a40250
125535a4a5a9
1328552c8573
1415046c9ac9
15ae499a56c
hex6895492d1

28073824977 has 32 divisors (see below), whose sum is σ = 41251262976. Its totient is φ = 16841260800.

The previous prime is 28073824949. The next prime is 28073824981. The reversal of 28073824977 is 77942837082.

It is not a de Polignac number, because 28073824977 - 28 = 28073824721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28073824577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3019578 + ... + 3028860.

It is an arithmetic number, because the mean of its divisors is an integer number (1289101968).

Almost surely, 228073824977 is an apocalyptic number.

It is an amenable number.

28073824977 is a deficient number, since it is larger than the sum of its proper divisors (13177437999).

28073824977 is a wasteful number, since it uses less digits than its factorization.

28073824977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 28073824977 in words is "twenty-eight billion, seventy-three million, eight hundred twenty-four thousand, nine hundred seventy-seven".

Divisors: 1 3 11 33 113 339 811 1243 2433 3729 8921 9283 26763 27849 91643 102113 274929 306339 1008073 1048979 3024219 3146937 7528513 11538769 22585539 34616307 82813643 248440929 850721969 2552165907 9357941659 28073824977