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13101030021 = 382318732833
BaseRepresentation
bin11000011001110000…
…11101101010000101
31020211000220021121010
430030320131222011
5203312330430041
610004000312433
7642440626542
oct141470355205
936730807533
1013101030021
11561320a842
122657612719
13130a2b6291
148c3d47bc9
1551a25ba16
hex30ce1da85

13101030021 has 16 divisors (see below), whose sum is σ = 17504779136. Its totient is φ = 8715672576.

The previous prime is 13101029999. The next prime is 13101030037. The reversal of 13101030021 is 12003010131.

It is not a de Polignac number, because 13101030021 - 215 = 13100997253 is a prime.

It is a super-2 number, since 2×131010300212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13101029979 and 13101030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101030721) 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, 4623021 + ... + 4625853.

It is an arithmetic number, because the mean of its divisors is an integer number (1094048696).

Almost surely, 213101030021 is an apocalyptic number.

It is an amenable number.

13101030021 is a deficient number, since it is larger than the sum of its proper divisors (4403749115).

13101030021 is a wasteful number, since it uses less digits than its factorization.

13101030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 13101030021 its reverse (12003010131), we get a palindrome (25104040152).

The spelling of 13101030021 in words is "thirteen billion, one hundred one million, thirty thousand, twenty-one".

Divisors: 1 3 823 1873 2469 2833 5619 8499 1541479 2331559 4624437 5306209 6994677 15918627 4367010007 13101030021