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22098876881 = 97997228509
BaseRepresentation
bin10100100101001100…
…100001100111010001
32010001002221021001112
4110211030201213101
5330224303030011
614052503343105
71411426232324
oct244514414721
963032837045
1022098876881
119410270314
124348a51a95
132112491513
1410d8d5c7bb
1589516058b
hex5253219d1

22098876881 has 8 divisors (see below), whose sum is σ = 22349192040. Its totient is φ = 21849020928.

The previous prime is 22098876871. The next prime is 22098876913. The reversal of 22098876881 is 18867889022.

It can be written as a sum of positive squares in 4 ways, for example, as 14641000000 + 7457876881 = 121000^2 + 86359^2 .

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 22098876881 - 230 = 21025135057 is a prime.

It is a super-2 number, since 2×220988768812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22098876881.

It is not an unprimeable number, because it can be changed into a prime (22098876851) 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, 17546 + ... + 210963.

It is an arithmetic number, because the mean of its divisors is an integer number (2793649005).

Almost surely, 222098876881 is an apocalyptic number.

It is an amenable number.

22098876881 is a deficient number, since it is larger than the sum of its proper divisors (250315159).

22098876881 is an equidigital number, since it uses as much as digits as its factorization.

22098876881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229603.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 22098876881 in words is "twenty-two billion, ninety-eight million, eight hundred seventy-six thousand, eight hundred eighty-one".

Divisors: 1 97 997 96709 228509 22165373 227823473 22098876881