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212680342 = 2715191453
BaseRepresentation
bin11001010110100…
…11111010010110
3112211012021120201
430223103322112
5413421232332
633034251114
75161516210
oct1453237226
9484167521
10212680342
11aa063986
125b286a9a
13350a6b74
14203635b0
1513a115e7
hexcad3e96

212680342 has 8 divisors (see below), whose sum is σ = 364594896. Its totient is φ = 91148712.

The previous prime is 212680337. The next prime is 212680373. The reversal of 212680342 is 243086212.

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 212680342.

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, 7595713 + ... + 7595740.

It is an arithmetic number, because the mean of its divisors is an integer number (45574362).

Almost surely, 2212680342 is an apocalyptic number.

212680342 is a deficient number, since it is larger than the sum of its proper divisors (151914554).

212680342 is a wasteful number, since it uses less digits than its factorization.

212680342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15191462.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 212680342 is about 14583.5641048408. The cubic root of 212680342 is about 596.9103601101.

The spelling of 212680342 in words is "two hundred twelve million, six hundred eighty thousand, three hundred forty-two".

Divisors: 1 2 7 14 15191453 30382906 106340171 212680342