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22106645709 = 312539587677
BaseRepresentation
bin10100100101101010…
…001010010011001101
32010001122112221212220
4110211222022103031
5330233300130314
614053342045553
71411552250061
oct244552122315
963048487786
1022106645709
119414697135
12434b5798b9
132113c81665
1410d9dc1aa1
15895b973a9
hex525a8a4cd

22106645709 has 8 divisors (see below), whose sum is σ = 29477928480. Its totient is φ = 14736563376.

The previous prime is 22106645689. The next prime is 22106645723. The reversal of 22106645709 is 90754660122.

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

It is not a de Polignac number, because 22106645709 - 213 = 22106637517 is a prime.

It is a super-2 number, since 2×221066457092 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22106645009) 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, 256222 + ... + 331455.

It is an arithmetic number, because the mean of its divisors is an integer number (3684741060).

Almost surely, 222106645709 is an apocalyptic number.

It is an amenable number.

22106645709 is a deficient number, since it is larger than the sum of its proper divisors (7371282771).

22106645709 is a wasteful number, since it uses less digits than its factorization.

22106645709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600219.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 22106645709 in words is "twenty-two billion, one hundred six million, six hundred forty-five thousand, seven hundred nine".

Divisors: 1 3 12539 37617 587677 1763031 7368881903 22106645709