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28532734308 = 22321379771739
BaseRepresentation
bin11010100100101011…
…101111100101100100
32201122111101002020100
4122210223233211210
5431413334444213
621035135304100
72030032145211
oct324453574544
981574332210
1028532734308
1111111a91661
12564367b030
1328c93c4550
141549626b08
15b1ede8773
hex6a4aef964

28532734308 has 72 divisors (see below), whose sum is σ = 78655740800. Its totient is φ = 8668161216.

The previous prime is 28532734303. The next prime is 28532734327. The reversal of 28532734308 is 80343723582.

28532734308 is a `hidden beast` number, since 2 + 8 + 532 + 73 + 43 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (28532734303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348898 + ... + 422841.

Almost surely, 228532734308 is an apocalyptic number.

It is an amenable number.

28532734308 is an abundant number, since it is smaller than the sum of its proper divisors (50123006492).

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

28532734308 is a wasteful number, since it uses less digits than its factorization.

28532734308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771841 (or 771836 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 28532734308 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred thirty-four thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 79 117 156 158 234 237 316 468 474 711 948 1027 1422 2054 2844 3081 4108 6162 9243 12324 18486 36972 771739 1543478 2315217 3086956 4630434 6945651 9260868 10032607 13891302 20065214 27782604 30097821 40130428 60195642 60967381 90293463 120391284 121934762 180586926 182902143 243869524 361173852 365804286 548706429 731608572 792575953 1097412858 1585151906 2194825716 2377727859 3170303812 4755455718 7133183577 9510911436 14266367154 28532734308