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190612 = 2247653
BaseRepresentation
bin101110100010010100
3100200110201
4232202110
522044422
64030244
71422502
oct564224
9320421
10190612
11120234
1292384
13689b6
144d672
153b727
hex2e894

190612 has 6 divisors (see below), whose sum is σ = 333578. Its totient is φ = 95304.

The previous prime is 190607. The next prime is 190613. The reversal of 190612 is 216091.

It can be written as a sum of positive squares in only one way, i.e., 148996 + 41616 = 386^2 + 204^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 190612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190613) by changing a digit.

190612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23823 + ... + 23830.

2190612 is an apocalyptic number.

It is an amenable number.

190612 is a deficient number, since it is larger than the sum of its proper divisors (142966).

190612 is a wasteful number, since it uses less digits than its factorization.

190612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47657 (or 47655 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 190612 is about 436.5913421038. The cubic root of 190612 is about 57.5506296348.

The spelling of 190612 in words is "one hundred ninety thousand, six hundred twelve".

Divisors: 1 2 4 47653 95306 190612