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214489 = 11173137
BaseRepresentation
bin110100010111011001
3101220020001
4310113121
523330424
64333001
71552222
oct642731
9356201
10214489
11137170
12a4161
1376822
1458249
1543844
hex345d9

214489 has 16 divisors (see below), whose sum is σ = 262656. Its totient is φ = 172800.

The previous prime is 214483. The next prime is 214499. The reversal of 214489 is 984412.

It is a cyclic number.

It is not a de Polignac number, because 214489 - 23 = 214481 is a prime.

It is a super-2 number, since 2×2144892 = 92011062242, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (2304) is a multiple of the sum of its prime divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5779 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (16416).

2214489 is an apocalyptic number.

It is an amenable number.

214489 is a deficient number, since it is larger than the sum of its proper divisors (48167).

214489 is a wasteful number, since it uses less digits than its factorization.

214489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96.

The product of its digits is 2304, while the sum is 28.

The square root of 214489 is about 463.1295715024. The cubic root of 214489 is about 59.8597650841.

It can be divided in two parts, 214 and 489, that added together give a triangular number (703 = T37).

The spelling of 214489 in words is "two hundred fourteen thousand, four hundred eighty-nine".

Divisors: 1 11 17 31 37 187 341 407 527 629 1147 5797 6919 12617 19499 214489