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13480806815 = 571542724967
BaseRepresentation
bin11001000111000010…
…01100100110011111
31021210111111221102022
430203201030212133
5210102041304230
610105404250355
7655031652530
oct144341144637
937714457368
1013480806815
115798622763
1227428409bb
13136ab96988
1491c566687
1553d7781e5
hex32384c99f

13480806815 has 16 divisors (see below), whose sum is σ = 18489902592. Its totient is φ = 9243012384.

The previous prime is 13480806811. The next prime is 13480806841. The reversal of 13480806815 is 51860808431.

It is a happy number.

13480806815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13480806815 - 22 = 13480806811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13480806811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527462 + ... + 552428.

It is an arithmetic number, because the mean of its divisors is an integer number (1155618912).

Almost surely, 213480806815 is an apocalyptic number.

13480806815 is a deficient number, since it is larger than the sum of its proper divisors (5009095777).

13480806815 is a wasteful number, since it uses less digits than its factorization.

13480806815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40406.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 13480806815 in words is "thirteen billion, four hundred eighty million, eight hundred six thousand, eight hundred fifteen".

Divisors: 1 5 7 35 15427 24967 77135 107989 124835 174769 539945 873845 385165909 1925829545 2696161363 13480806815