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13120004 = 227941519
BaseRepresentation
bin110010000011…
…001000000100
3220200120021002
4302003020010
511324320004
61145112432
7216342512
oct62031004
926616232
1013120004
117451287
124488718
132944a21
141a574b2
15124261e
hexc83204

13120004 has 12 divisors (see below), whose sum is σ = 23251200. Its totient is φ = 6476808.

The previous prime is 13119983. The next prime is 13120057. The reversal of 13120004 is 40002131.

It is a happy number.

It is a pancake number, because a pancake can be divided into 13120004 parts by 5122 straight cuts.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20444 + ... + 21075.

It is an arithmetic number, because the mean of its divisors is an integer number (1937600).

Almost surely, 213120004 is an apocalyptic number.

It is an amenable number.

13120004 is a deficient number, since it is larger than the sum of its proper divisors (10131196).

13120004 is a wasteful number, since it uses less digits than its factorization.

13120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41602 (or 41600 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13120004 is about 3622.1546074126. The cubic root of 13120004 is about 235.8547655678.

Adding to 13120004 its reverse (40002131), we get a palindrome (53122135).

The spelling of 13120004 in words is "thirteen million, one hundred twenty thousand, four".

Divisors: 1 2 4 79 158 316 41519 83038 166076 3280001 6560002 13120004