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212492 = 2277589
BaseRepresentation
bin110011111000001100
3101210111002
4303320030
523244432
64315432
71543340
oct637014
9353432
10212492
11135715
12a2b78
1375947
1457620
1542e62
hex33e0c

212492 has 12 divisors (see below), whose sum is σ = 425040. Its totient is φ = 91056.

The previous prime is 212479. The next prime is 212501. The reversal of 212492 is 294212.

212492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

212492 is an admirable number.

It is a zygodrome in base 2.

It is an unprimeable number.

212492 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 in 3 ways as a sum of consecutive naturals, for example, 3767 + ... + 3822.

It is an arithmetic number, because the mean of its divisors is an integer number (35420).

2212492 is an apocalyptic number.

It is an amenable number.

212492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212492 is a wasteful number, since it uses less digits than its factorization.

212492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600 (or 7598 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 212492 is about 460.9685455647. The cubic root of 212492 is about 59.6734107348.

The spelling of 212492 in words is "two hundred twelve thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 7589 15178 30356 53123 106246 212492