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13500895 = 52700179
BaseRepresentation
bin110011100000…
…000111011111
3221101220202011
4303200013133
511424012040
61201212051
7222520132
oct63400737
927356664
1013500895
117691471
124631027
132a491c5
141b16219
1512ba3ea
hexce01df

13500895 has 4 divisors (see below), whose sum is σ = 16201080. Its totient is φ = 10800712.

The previous prime is 13500889. The next prime is 13500899. The reversal of 13500895 is 59800531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13500895 - 211 = 13498847 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500899) by changing a digit.

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, 1350085 + ... + 1350094.

It is an arithmetic number, because the mean of its divisors is an integer number (4050270).

Almost surely, 213500895 is an apocalyptic number.

13500895 is a deficient number, since it is larger than the sum of its proper divisors (2700185).

13500895 is an equidigital number, since it uses as much as digits as its factorization.

13500895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700184.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 13500895 is about 3674.3564062295. The cubic root of 13500895 is about 238.1154196195.

The spelling of 13500895 in words is "thirteen million, five hundred thousand, eight hundred ninety-five".

Divisors: 1 5 2700179 13500895