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13210100442 = 2327119531097
BaseRepresentation
bin11000100110110001…
…00010001011011010
31021002122010122002100
430103120202023122
5204023241203232
610022454144230
7645234000240
oct142330421332
937078118070
1013210100442
115669836a90
122688052076
131326a844a6
148d461a790
15524b03c7c
hex3136222da

13210100442 has 48 divisors (see below), whose sum is σ = 35684430912. Its totient is φ = 3431194560.

The previous prime is 13210100441. The next prime is 13210100551. The reversal of 13210100442 is 24400101231.

13210100442 is a `hidden beast` number, since 1 + 3 + 210 + 10 + 0 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13210100441) 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, 4764163 + ... + 4766934.

It is an arithmetic number, because the mean of its divisors is an integer number (743425644).

Almost surely, 213210100442 is an apocalyptic number.

13210100442 is an abundant number, since it is smaller than the sum of its proper divisors (22474330470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13210100442 is a wasteful number, since it uses less digits than its factorization.

13210100442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531123 (or 9531120 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13210100442 its reverse (24400101231), we get a palindrome (37610201673).

The spelling of 13210100442 in words is "thirteen billion, two hundred ten million, one hundred thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 154 198 231 462 693 1386 9531097 19062194 28593291 57186582 66717679 85779873 104842067 133435358 171559746 200153037 209684134 314526201 400306074 600459111 629052402 733894469 943578603 1200918222 1467788938 1887157206 2201683407 4403366814 6605050221 13210100442