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13000038 = 232166673
BaseRepresentation
bin110001100101…
…110101100110
3220110110200220
4301211311212
511312000123
61142345210
7215332662
oct61456546
926413626
1013000038
11737a137
12442b206
13290223c
141a258a2
15121bce3
hexc65d66

13000038 has 8 divisors (see below), whose sum is σ = 26000088. Its totient is φ = 4333344.

The previous prime is 13000027. The next prime is 13000049. The reversal of 13000038 is 83000031.

It is an interprime number because it is at equal distance from previous prime (13000027) and next prime (13000049).

It is a sphenic number, since it is the product of 3 distinct primes.

13000038 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12999990 and 13000026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083331 + ... + 1083342.

It is an arithmetic number, because the mean of its divisors is an integer number (3250011).

Almost surely, 213000038 is an apocalyptic number.

13000038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13000038 is a wasteful number, since it uses less digits than its factorization.

13000038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166678.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13000038 is about 3605.5565451120. The cubic root of 13000038 is about 235.1336978763.

Adding to 13000038 its reverse (83000031), we get a palindrome (96000069).

The spelling of 13000038 in words is "thirteen million, thirty-eight", and thus it is an aban number and an uban number.

Divisors: 1 2 3 6 2166673 4333346 6500019 13000038