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105354322221 = 386234072609
BaseRepresentation
bin110001000011110011…
…0110110000100101101
3101001221022202002112010
41202013212312010231
53211231201302341
6120222112431433
710416530651241
oct1420746660455
9331838662463
10105354322221
114075384a695
1218502b48579
139c1cba8945
1451561d6421
152b19330716
hex18879b612d

105354322221 has 8 divisors (see below), whose sum is σ = 140488754560. Its totient is φ = 70228052352.

The previous prime is 105354322219. The next prime is 105354322259. The reversal of 105354322221 is 122223453501.

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

It is not a de Polignac number, because 105354322221 - 21 = 105354322219 is a prime.

It is a super-2 number, since 2×1053543222212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105354329221) 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, 2010436 + ... + 2062173.

It is an arithmetic number, because the mean of its divisors is an integer number (17561094320).

Almost surely, 2105354322221 is an apocalyptic number.

It is an amenable number.

105354322221 is a deficient number, since it is larger than the sum of its proper divisors (35134432339).

105354322221 is an equidigital number, since it uses as much as digits as its factorization.

105354322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081235.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 105354322221 its reverse (122223453501), we get a palindrome (227577775722).

The spelling of 105354322221 in words is "one hundred five billion, three hundred fifty-four million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 8623 25869 4072609 12217827 35118107407 105354322221