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219412 = 22192887
BaseRepresentation
bin110101100100010100
3102010222101
4311210110
524010122
64411444
71602454
oct654424
9363871
10219412
1113a936
12a6b84
1378b3b
1459d64
1545027
hex35914

219412 has 12 divisors (see below), whose sum is σ = 404320. Its totient is φ = 103896.

The previous prime is 219409. The next prime is 219433. The reversal of 219412 is 214912.

219412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 219412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368 + ... + 1519.

2219412 is an apocalyptic number.

It is an amenable number.

219412 is a deficient number, since it is larger than the sum of its proper divisors (184908).

219412 is a wasteful number, since it uses less digits than its factorization.

219412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910 (or 2908 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 219412 is about 468.4143464925. The cubic root of 219412 is about 60.3142768857.

Multiplying 219412 by its sum of digits (19), we get a triangular number (4168828 = T2887).

The spelling of 219412 in words is "two hundred nineteen thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 2887 5774 11548 54853 109706 219412