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13000012019 = 23375174293
BaseRepresentation
bin11000001101101110…
…00111000011110011
31020112222211000221122
430012313013003303
5203111000341034
65545551212455
7640103164451
oct140667070363
936488730848
1013000012019
115571193495
12262981712b
1312c23a7307
148b476d9d1
1551145562e
hex306dc70f3

13000012019 has 8 divisors (see below), whose sum is σ = 13073366592. Its totient is φ = 12926808000.

The previous prime is 13000012007. The next prime is 13000012043. The reversal of 13000012019 is 91021000031.

It is a happy number.

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 13000012019 - 216 = 12999946483 is a prime.

It is a super-2 number, since 2×130000120192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13000011988 and 13000012006.

It is not an unprimeable number, because it can be changed into a prime (13000012079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137837 + ... + 212129.

It is an arithmetic number, because the mean of its divisors is an integer number (1634170824).

Almost surely, 213000012019 is an apocalyptic number.

13000012019 is a deficient number, since it is larger than the sum of its proper divisors (73354573).

13000012019 is an equidigital number, since it uses as much as digits as its factorization.

13000012019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75277.

The product of its (nonzero) digits is 54, while the sum is 17.

The spelling of 13000012019 in words is "thirteen billion, twelve thousand, nineteen".

Divisors: 1 233 751 74293 174983 17310269 55794043 13000012019