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213886038 = 2335647673
BaseRepresentation
bin11001011111110…
…10010001010110
3112220110112111010
430233322101112
5414223323123
633120153050
75205000312
oct1457722126
9486415433
10213886038
11aa807823
125b768786
13354098b2
1420598b42
1513b9d993
hexcbfa456

213886038 has 8 divisors (see below), whose sum is σ = 427772088. Its totient is φ = 71295344.

The previous prime is 213886037. The next prime is 213886063. The reversal of 213886038 is 830688312.

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

213886038 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 213885987 and 213886005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213886037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17823831 + ... + 17823842.

It is an arithmetic number, because the mean of its divisors is an integer number (53471511).

Almost surely, 2213886038 is an apocalyptic number.

213886038 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.

213886038 is a wasteful number, since it uses less digits than its factorization.

213886038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35647678.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 213886038 is about 14624.8431786464. The cubic root of 213886038 is about 598.0362073206.

The spelling of 213886038 in words is "two hundred thirteen million, eight hundred eighty-six thousand, thirty-eight".

Divisors: 1 2 3 6 35647673 71295346 106943019 213886038