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212830798 = 2123786027
BaseRepresentation
bin11001010111110…
…00101001001110
3112211110220222011
430223320221032
5413441041143
633041411434
75163013645
oct1453705116
9484426864
10212830798
11aa156a24
125b339b7a
133512a4ab
14203a235c
1513a40e9d
hexcaf8a4e

212830798 has 8 divisors (see below), whose sum is σ = 319507992. Its totient is φ = 106328136.

The previous prime is 212830789. The next prime is 212830801. The reversal of 212830798 is 897038212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212830798.

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, 40540 + ... + 45487.

It is an arithmetic number, because the mean of its divisors is an integer number (39938499).

Almost surely, 2212830798 is an apocalyptic number.

212830798 is a deficient number, since it is larger than the sum of its proper divisors (106677194).

212830798 is a wasteful number, since it uses less digits than its factorization.

212830798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87266.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 212830798 is about 14588.7216026628. The cubic root of 212830798 is about 597.0510839383.

The spelling of 212830798 in words is "two hundred twelve million, eight hundred thirty thousand, seven hundred ninety-eight".

Divisors: 1 2 1237 2474 86027 172054 106415399 212830798