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212790252 = 22342112
BaseRepresentation
bin11001010111011…
…10101111101100
3112211101212100110
430223232233230
5413433242002
633040500020
75162454513
oct1453565754
9484355313
10212790252
11aa129514
125b31a610
1335114bbc
142039167a
1513a33e6c
hexcaeebec

212790252 has 18 divisors (see below), whose sum is σ = 496628524. Its totient is φ = 70913240.

The previous prime is 212790251. The next prime is 212790269. The reversal of 212790252 is 252097212.

It is not an unprimeable number, because it can be changed into a prime (212790251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48427 + ... + 52637.

Almost surely, 2212790252 is an apocalyptic number.

It is an amenable number.

212790252 is an abundant number, since it is smaller than the sum of its proper divisors (283838272).

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

212790252 is an frugal number, since it uses more digits than its factorization.

212790252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8429 (or 4216 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 212790252 is about 14587.3319013451. The cubic root of 212790252 is about 597.0131671661.

The spelling of 212790252 in words is "two hundred twelve million, seven hundred ninety thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 4211 8422 12633 16844 25266 50532 17732521 35465042 53197563 70930084 106395126 212790252