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21103214041 = 7132149119723
BaseRepresentation
bin10011101001110110…
…010111110111011001
32000110201102100102001
4103221312113313121
5321204410322131
613410015041001
71344646234240
oct235166276731
960421370361
1021103214041
118a4a23a068
12410b510161
131cb4112500
141042a1d957
15837a39261
hex4e9d97dd9

21103214041 has 24 divisors (see below), whose sum is σ = 26291390400. Its totient is φ = 16584849216.

The previous prime is 21103213973. The next prime is 21103214051. The reversal of 21103214041 is 14041230112.

It is not a de Polignac number, because 21103214041 - 229 = 20566343129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21103214051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116406 + ... + 236128.

It is an arithmetic number, because the mean of its divisors is an integer number (1095474600).

Almost surely, 221103214041 is an apocalyptic number.

It is an amenable number.

21103214041 is a deficient number, since it is larger than the sum of its proper divisors (5188176359).

21103214041 is a wasteful number, since it uses less digits than its factorization.

21103214041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119905 (or 119892 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21103214041 its reverse (14041230112), we get a palindrome (35144444153).

The spelling of 21103214041 in words is "twenty-one billion, one hundred three million, two hundred fourteen thousand, forty-one".

Divisors: 1 7 13 91 149 169 1043 1183 1937 13559 25181 119723 176267 838061 1556399 10894793 17838727 20233187 124871089 141632309 231903451 1623324157 3014744863 21103214041