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22157620163 = 73785550657
BaseRepresentation
bin10100101000101100…
…100111001111000011
32010012012110201200122
4110220230213033003
5330334322321123
614102402410455
71413041443460
oct245054471703
963165421618
1022157620163
119440442a88
124364660a2b
1321216bb463
141102a90667
1589a3b5bc8
hex528b273c3

22157620163 has 8 divisors (see below), whose sum is σ = 26007400032. Its totient is φ = 18478941696.

The previous prime is 22157620141. The next prime is 22157620181. The reversal of 22157620163 is 36102675122.

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 22157620163 - 26 = 22157620099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22157620103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42775070 + ... + 42775587.

It is an arithmetic number, because the mean of its divisors is an integer number (3250925004).

Almost surely, 222157620163 is an apocalyptic number.

22157620163 is a deficient number, since it is larger than the sum of its proper divisors (3849779869).

22157620163 is an equidigital number, since it uses as much as digits as its factorization.

22157620163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85550701.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 22157620163 in words is "twenty-two billion, one hundred fifty-seven million, six hundred twenty thousand, one hundred sixty-three".

Divisors: 1 7 37 259 85550657 598854599 3165374309 22157620163