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28214797896 = 23321991969207
BaseRepresentation
bin11010010001101110…
…111010011001001000
32200211100010020110200
4122101232322121020
5430240442013041
620543421012200
72016121552665
oct322156723110
980740106420
1028214797896
1110a6957729a
1255750b4060
1328785866ac
141519304a6c
15b020451b6
hex691bba648

28214797896 has 48 divisors (see below), whose sum is σ = 76799112000. Its totient is φ = 9357666912.

The previous prime is 28214797879. The next prime is 28214797927. The reversal of 28214797896 is 69879741282.

28214797896 is a `hidden beast` number, since 2 + 8 + 2 + 1 + 479 + 78 + 96 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 970276 + ... + 998931.

It is an arithmetic number, because the mean of its divisors is an integer number (1599981500).

Almost surely, 228214797896 is an apocalyptic number.

It is an amenable number.

28214797896 is an abundant number, since it is smaller than the sum of its proper divisors (48584314104).

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

28214797896 is a wasteful number, since it uses less digits than its factorization.

28214797896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969418 (or 1969411 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 28214797896 in words is "twenty-eight billion, two hundred fourteen million, seven hundred ninety-seven thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 199 398 597 796 1194 1592 1791 2388 3582 4776 7164 14328 1969207 3938414 5907621 7876828 11815242 15753656 17722863 23630484 35445726 47260968 70891452 141782904 391872193 783744386 1175616579 1567488772 2351233158 3134977544 3526849737 4702466316 7053699474 9404932632 14107398948 28214797896