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27804002028 = 22311988321313
BaseRepresentation
bin11001111001001111…
…110110011011101100
32122202201010122110220
4121321033312123230
5423420311031103
620434544131340
72003003055255
oct317117663354
978681118426
1027804002028
11108786a8280
12547b606b50
13281143520a
1414ba92db2c
15acae4cc53
hex6793f66ec

27804002028 has 48 divisors (see below), whose sum is σ = 70784305536. Its totient is φ = 8424207360.

The previous prime is 27804002003. The next prime is 27804002077. The reversal of 27804002028 is 82020040872.

It is a super-2 number, since 2×278040020282 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 27804002028.

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, 1293900 + ... + 1315212.

It is an arithmetic number, because the mean of its divisors is an integer number (1474673032).

Almost surely, 227804002028 is an apocalyptic number.

It is an amenable number.

27804002028 is an abundant number, since it is smaller than the sum of its proper divisors (42980303508).

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

27804002028 is a wasteful number, since it uses less digits than its factorization.

27804002028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31214 (or 31212 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The spelling of 27804002028 in words is "twenty-seven billion, eight hundred four million, two thousand, twenty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 9883 19766 21313 29649 39532 42626 59298 63939 85252 108713 118596 127878 217426 234443 255756 326139 434852 468886 652278 703329 937772 1304556 1406658 2813316 210636379 421272758 631909137 842545516 1263818274 2317000169 2527636548 4634000338 6951000507 9268000676 13902001014 27804002028