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213880422 = 2375092391
BaseRepresentation
bin11001011111110…
…00111001100110
3112220110020210010
430233320321212
5414223133142
633120111050
75204645040
oct1457707146
9486406703
10213880422
11aa803588
125b765486
1335407182
1420596a90
1513b9be9c
hexcbf8e66

213880422 has 16 divisors (see below), whose sum is σ = 488869632. Its totient is φ = 61108680.

The previous prime is 213880379. The next prime is 213880483. The reversal of 213880422 is 224088312.

It is a self number, because there is not a number n which added to its sum of digits gives 213880422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546154 + ... + 2546237.

It is an arithmetic number, because the mean of its divisors is an integer number (30554352).

Almost surely, 2213880422 is an apocalyptic number.

213880422 is an abundant number, since it is smaller than the sum of its proper divisors (274989210).

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

213880422 is a wasteful number, since it uses less digits than its factorization.

213880422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092403.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 213880422 is about 14624.6511753272. The cubic root of 213880422 is about 598.0309730679.

The spelling of 213880422 in words is "two hundred thirteen million, eight hundred eighty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 5092391 10184782 15277173 30554346 35646737 71293474 106940211 213880422