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13148227 = 60721661
BaseRepresentation
bin110010001010…
…000001000011
3220201222222101
4302022001003
511331220402
61145451231
7216521011
oct62120103
926658871
1013148227
117470504
1244a0b17
132954821
141a638b1
15124ab87
hexc8a043

13148227 has 4 divisors (see below), whose sum is σ = 13170496. Its totient is φ = 13125960.

The previous prime is 13148221. The next prime is 13148231. The reversal of 13148227 is 72284131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13148227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13148195 and 13148204.

It is not an unprimeable number, because it can be changed into a prime (13148221) 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, 10224 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (3292624).

Almost surely, 213148227 is an apocalyptic number.

13148227 is the 2094-th hex number.

13148227 is a deficient number, since it is larger than the sum of its proper divisors (22269).

13148227 is an equidigital number, since it uses as much as digits as its factorization.

13148227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22268.

The product of its digits is 2688, while the sum is 28.

The square root of 13148227 is about 3626.0484001182. The cubic root of 13148227 is about 236.0237635269.

It can be divided in two parts, 13 and 148227, that added together give a triangular number (148240 = T544).

The spelling of 13148227 in words is "thirteen million, one hundred forty-eight thousand, two hundred twenty-seven".

Divisors: 1 607 21661 13148227