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13224386845 = 59727266777
BaseRepresentation
bin11000101000011110…
…00010000100011101
31021010122000110100101
430110033002010131
5204040420334340
610024124301101
7645466301455
oct142417020435
937118013311
1013224386845
11567690462a
1226909a1791
131329a17097
148d6498d65
15525ec6c9a
hex3143c211d

13224386845 has 8 divisors (see below), whose sum is σ = 16032865464. Its totient is φ = 10470441984.

The previous prime is 13224386839. The next prime is 13224386863. The reversal of 13224386845 is 54868342231.

It can be written as a sum of positive squares in 4 ways, for example, as 3933547524 + 9290839321 = 62718^2 + 96389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13224386845 - 217 = 13224255773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13224386795 and 13224386804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13632904 + ... + 13633873.

It is an arithmetic number, because the mean of its divisors is an integer number (2004108183).

Almost surely, 213224386845 is an apocalyptic number.

It is an amenable number.

13224386845 is a deficient number, since it is larger than the sum of its proper divisors (2808478619).

13224386845 is an equidigital number, since it uses as much as digits as its factorization.

13224386845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27266879.

The product of its digits is 1105920, while the sum is 46.

The spelling of 13224386845 in words is "thirteen billion, two hundred twenty-four million, three hundred eighty-six thousand, eight hundred forty-five".

Divisors: 1 5 97 485 27266777 136333885 2644877369 13224386845