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211444022441 = 17231573444443
BaseRepresentation
bin1100010011101100001…
…0111011110010101001
3202012202220020021000102
43010323002323302221
511431014132204231
6241045215115145
721163531351631
oct3047302736251
9665686207012
10211444022441
1181744702693
1234b90212ab5
1316c2922c7a2
14a33bd356c1
155777ec0acb
hex313b0bbca9

211444022441 has 16 divisors (see below), whose sum is σ = 235103969664. Its totient is φ = 189141199104.

The previous prime is 211444022399. The next prime is 211444022513. The reversal of 211444022441 is 144220444112.

It is a cyclic number.

It is not a de Polignac number, because 211444022441 - 234 = 194264153257 is a prime.

It is a super-2 number, since 2×2114440224412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211444022341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1660835 + ... + 1783608.

It is an arithmetic number, because the mean of its divisors is an integer number (14693998104).

Almost surely, 2211444022441 is an apocalyptic number.

It is an amenable number.

211444022441 is a deficient number, since it is larger than the sum of its proper divisors (23659947223).

211444022441 is a wasteful number, since it uses less digits than its factorization.

211444022441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444640.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 211444022441 its reverse (144220444112), we get a palindrome (355664466553).

The spelling of 211444022441 in words is "two hundred eleven billion, four hundred forty-four million, twenty-two thousand, four hundred forty-one".

Divisors: 1 17 23 157 391 2669 3611 61387 3444443 58555531 79222189 540777551 1346777213 9193218367 12437883673 211444022441