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22028324857 = 711286082141
BaseRepresentation
bin10100100000111111…
…011000111111111001
32002212012011211212121
4110200333120333321
5330103222343412
614041503241241
71406611446310
oct244077307771
962765154777
1022028324857
119384462560
1243292a9221
13210098b666
1410cd835277
1588dd76107
hex520fd8ff9

22028324857 has 8 divisors (see below), whose sum is σ = 27463885632. Its totient is φ = 17164928400.

The previous prime is 22028324839. The next prime is 22028324867. The reversal of 22028324857 is 75842382022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22028324857 - 215 = 22028292089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22028324827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143040994 + ... + 143041147.

It is an arithmetic number, because the mean of its divisors is an integer number (3432985704).

Almost surely, 222028324857 is an apocalyptic number.

It is an amenable number.

22028324857 is a deficient number, since it is larger than the sum of its proper divisors (5435560775).

22028324857 is a wasteful number, since it uses less digits than its factorization.

22028324857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286082159.

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 22028324857 in words is "twenty-two billion, twenty-eight million, three hundred twenty-four thousand, eight hundred fifty-seven".

Divisors: 1 7 11 77 286082141 2002574987 3146903551 22028324857