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214369 = 4632
BaseRepresentation
bin110100010101100001
3101220001121
4310111201
523324434
64332241
71551661
oct642541
9356047
10214369
11137071
12a4081
137675c
14581a1
15437b4
hex34561

214369 has 3 divisors (see below), whose sum is σ = 214833. Its totient is φ = 213906.

The previous prime is 214363. The next prime is 214373. The reversal of 214369 is 963412.

Multipling 214369 by its sum of digits (25), we get a square (5359225 = 23152).

Multipling 214369 by its product of digits (1296), we get a square (277822224 = 166682).

214369 = T462 + T463.

The square root of 214369 is 463.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 214369 - 213 = 206177 is a prime.

It is a super-2 number, since 2×2143692 = 91908136322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214363) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 232 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (71611).

214369 is a Friedman number, since it can be written as 926^(3-1)/4, using all its digits and the basic arithmetic operations.

2214369 is an apocalyptic number.

214369 is the 463-rd square number.

214369 is the 232-nd centered octagonal number.

It is an amenable number.

214369 is a deficient number, since it is larger than the sum of its proper divisors (464).

214369 is an frugal number, since it uses more digits than its factorization.

214369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 463 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The cubic root of 214369 is about 59.8485997690.

The spelling of 214369 in words is "two hundred fourteen thousand, three hundred sixty-nine".

Divisors: 1 463 214369