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13588880069 = 118111506249
BaseRepresentation
bin11001010011111010…
…11101101011000101
31022002000212122001102
430221331131223011
5210312223130234
610124224505445
7660513401102
oct145175355305
938060778042
1013588880069
1158436287a6
122772a7b285
1313873a604b
1492ca59aa9
15547ec4c7e
hex329f5dac5

13588880069 has 4 divisors (see below), whose sum is σ = 13600387500. Its totient is φ = 13577372640.

The previous prime is 13588880003. The next prime is 13588880087. The reversal of 13588880069 is 96008888531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96008888531 = 157611521583.

It can be written as a sum of positive squares in 2 ways, for example, as 9484812100 + 4104067969 = 97390^2 + 64063^2 .

It is a cyclic number.

It is not a de Polignac number, because 13588880069 - 212 = 13588875973 is a prime.

It is a super-2 number, since 2×135888800692 (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 = 13588879996 and 13588880023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13588880089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751944 + ... + 5754305.

It is an arithmetic number, because the mean of its divisors is an integer number (3400096875).

Almost surely, 213588880069 is an apocalyptic number.

It is an amenable number.

13588880069 is a deficient number, since it is larger than the sum of its proper divisors (11507431).

13588880069 is a wasteful number, since it uses less digits than its factorization.

13588880069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507430.

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 13588880069 in words is "thirteen billion, five hundred eighty-eight million, eight hundred eighty thousand, sixty-nine".

Divisors: 1 1181 11506249 13588880069