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28076682756 = 22371103131963
BaseRepresentation
bin11010001001100000…
…000010111000000100
32200110201020021010010
4122021200002320010
5430000112322011
620522004430220
72012523602643
oct321140027004
980421207103
1028076682756
11109a8612351
1255369a8370
132855a89265
141504c3135a
15ae4d621a6
hex689802e04

28076682756 has 48 divisors (see below), whose sum is σ = 66501485568. Its totient is φ = 9217840800.

The previous prime is 28076682721. The next prime is 28076682817. The reversal of 28076682756 is 65728667082.

It is a happy number.

It is a super-2 number, since 2×280766827562 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28076682696 and 28076682705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862431 + ... + 894393.

It is an arithmetic number, because the mean of its divisors is an integer number (1385447616).

Almost surely, 228076682756 is an apocalyptic number.

It is an amenable number.

28076682756 is an abundant number, since it is smaller than the sum of its proper divisors (38424802812).

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

28076682756 is a wasteful number, since it uses less digits than its factorization.

28076682756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33072 (or 33070 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 28076682756 in words is "twenty-eight billion, seventy-six million, six hundred eighty-two thousand, seven hundred fifty-six".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 1031 2062 3093 4124 6186 12372 31963 63926 73201 95889 127852 146402 191778 219603 292804 383556 439206 878412 2269373 4538746 6808119 9077492 13616238 27232476 32953853 65907706 98861559 131815412 197723118 395446236 2339723563 4679447126 7019170689 9358894252 14038341378 28076682756