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22102202109 = 313243594087
BaseRepresentation
bin10100100101011001…
…001101011011111101
32010001100012012102010
4110211121031123331
5330231130431414
614053102521433
71411466422011
oct244531153375
963040165363
1022102202109
119412131639
124349b96279
132113086c00
1410d9586541
158955ba959
hex52564d6fd

22102202109 has 12 divisors (see below), whose sum is σ = 31910872416. Its totient is φ = 13601354832.

The previous prime is 22102202069. The next prime is 22102202113. The reversal of 22102202109 is 90120220122.

It is a happy number.

It is not a de Polignac number, because 22102202109 - 213 = 22102193917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102202119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21796537 + ... + 21797550.

It is an arithmetic number, because the mean of its divisors is an integer number (2659239368).

Almost surely, 222102202109 is an apocalyptic number.

It is an amenable number.

22102202109 is a deficient number, since it is larger than the sum of its proper divisors (9808670307).

22102202109 is a wasteful number, since it uses less digits than its factorization.

22102202109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43594116 (or 43594103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 22102202109 in words is "twenty-two billion, one hundred two million, two hundred two thousand, one hundred nine".

Divisors: 1 3 13 39 169 507 43594087 130782261 566723131 1700169393 7367400703 22102202109