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13140009 = 33486667
BaseRepresentation
bin110010001000…
…000000101001
3220201120201000
4302020000221
511330440014
61145345213
7216455031
oct62100051
926646630
1013140009
117465313
124498209
132950b6c
141a608c1
151248509
hexc88029

13140009 has 8 divisors (see below), whose sum is σ = 19466720. Its totient is φ = 8759988.

The previous prime is 13140007. The next prime is 13140011. The reversal of 13140009 is 90004131.

It is an interprime number because it is at equal distance from previous prime (13140007) and next prime (13140011).

It is not a de Polignac number, because 13140009 - 21 = 13140007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13139973 and 13140000.

It is not an unprimeable number, because it can be changed into a prime (13140007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243307 + ... + 243360.

It is an arithmetic number, because the mean of its divisors is an integer number (2433340).

Almost surely, 213140009 is an apocalyptic number.

It is an amenable number.

13140009 is a deficient number, since it is larger than the sum of its proper divisors (6326711).

13140009 is an equidigital number, since it uses as much as digits as its factorization.

13140009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486676 (or 486670 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13140009 is about 3624.9150334870. The cubic root of 13140009 is about 235.9745795180.

The spelling of 13140009 in words is "thirteen million, one hundred forty thousand, nine".

Divisors: 1 3 9 27 486667 1460001 4380003 13140009