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22155468911 = 231249777081
BaseRepresentation
bin10100101000100100…
…011010000001101111
32010012001102102201122
4110220210122001233
5330333300001121
614102244331155
71413014243552
oct245044320157
963161372648
1022155468911
11943a203794
1243639a3abb
132121117224
141102690699
1589a0dd5ab
hex52891a06f

22155468911 has 8 divisors (see below), whose sum is σ = 23120900064. Its totient is φ = 21190216960.

The previous prime is 22155468901. The next prime is 22155468967. The reversal of 22155468911 is 11986455122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22155468911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155468901) 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, 248891 + ... + 325971.

It is an arithmetic number, because the mean of its divisors is an integer number (2890112508).

Almost surely, 222155468911 is an apocalyptic number.

22155468911 is a deficient number, since it is larger than the sum of its proper divisors (965431153).

22155468911 is a wasteful number, since it uses less digits than its factorization.

22155468911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89601.

The product of its digits is 172800, while the sum is 44.

The spelling of 22155468911 in words is "twenty-two billion, one hundred fifty-five million, four hundred sixty-eight thousand, nine hundred eleven".

Divisors: 1 23 12497 77081 287431 1772863 963281257 22155468911