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13136219 = 31423749
BaseRepresentation
bin110010000111…
…000101011011
3220201101111122
4302013011123
511330324334
61145315455
7216441005
oct62070533
926641448
1013136219
117462488
124495b8b
13294c215
141a5d375
15124732e
hexc8715b

13136219 has 4 divisors (see below), whose sum is σ = 13560000. Its totient is φ = 12712440.

The previous prime is 13136203. The next prime is 13136231. The reversal of 13136219 is 91263131.

13136219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13136219 - 24 = 13136203 is a prime.

It is a super-2 number, since 2×131362192 = 345120499231922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13136119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211844 + ... + 211905.

It is an arithmetic number, because the mean of its divisors is an integer number (3390000).

Almost surely, 213136219 is an apocalyptic number.

13136219 is a deficient number, since it is larger than the sum of its proper divisors (423781).

13136219 is an equidigital number, since it uses as much as digits as its factorization.

13136219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423780.

The product of its digits is 972, while the sum is 26.

The square root of 13136219 is about 3624.3922249116. The cubic root of 13136219 is about 235.9518897909.

The spelling of 13136219 in words is "thirteen million, one hundred thirty-six thousand, two hundred nineteen".

Divisors: 1 31 423749 13136219