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13020233455 = 519137055089
BaseRepresentation
bin11000010000001000…
…01111111011101111
31020121101212101112201
430020010033323233
5203131134432310
65551552442331
7640440105205
oct141004177357
936541771481
1013020233455
115581645119
1226345493a7
1312c6637468
148b7315075
155130ebe3a
hex30810feef

13020233455 has 8 divisors (see below), whose sum is σ = 16446610800. Its totient is φ = 9867966336.

The previous prime is 13020233449. The next prime is 13020233477. The reversal of 13020233455 is 55433202031.

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 13020233455 - 211 = 13020231407 is a prime.

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, 68527450 + ... + 68527639.

It is an arithmetic number, because the mean of its divisors is an integer number (2055826350).

Almost surely, 213020233455 is an apocalyptic number.

13020233455 is a deficient number, since it is larger than the sum of its proper divisors (3426377345).

13020233455 is a wasteful number, since it uses less digits than its factorization.

13020233455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137055113.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 13020233455 its reverse (55433202031), we get a palindrome (68453435486).

The spelling of 13020233455 in words is "thirteen billion, twenty million, two hundred thirty-three thousand, four hundred fifty-five".

Divisors: 1 5 19 95 137055089 685275445 2604046691 13020233455