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21110422341 = 333142150497
BaseRepresentation
bin10011101010010001…
…110111101101000101
32000111012222120100010
4103222101313231011
5321213232003331
613410433340433
71345064425551
oct235221675505
960435876303
1021110422341
118a53312838
124111a07719
131cb5767488
141043978861
158384aee46
hex4ea477b45

21110422341 has 16 divisors (see below), whose sum is σ = 28299887168. Its totient is φ = 13997491200.

The previous prime is 21110422303. The next prime is 21110422349. The reversal of 21110422341 is 14322401112.

It is not a de Polignac number, because 21110422341 - 234 = 3930553157 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 (21110422349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392805 + ... + 443301.

It is an arithmetic number, because the mean of its divisors is an integer number (1768742948).

Almost surely, 221110422341 is an apocalyptic number.

It is an amenable number.

21110422341 is a deficient number, since it is larger than the sum of its proper divisors (7189464827).

21110422341 is a wasteful number, since it uses less digits than its factorization.

21110422341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51252.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21110422341 its reverse (14322401112), we get a palindrome (35432823453).

The spelling of 21110422341 in words is "twenty-one billion, one hundred ten million, four hundred twenty-two thousand, three hundred forty-one".

Divisors: 1 3 331 421 993 1263 50497 139351 151491 418053 16714507 21259237 50143521 63777711 7036807447 21110422341