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213257027 = 1747926189
BaseRepresentation
bin11001011011000…
…00101101000011
3112212021120122102
430231200231003
5414043211102
633054501015
75166440414
oct1455405503
9485246572
10213257027
11aa418185
125b50476b
13352494b9
142047380b
1513ac7402
hexcb60b43

213257027 has 8 divisors (see below), whose sum is σ = 226281600. Its totient is φ = 200285824.

The previous prime is 213257021. The next prime is 213257059. The reversal of 213257027 is 720752312.

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

It is a cyclic number.

It is not a de Polignac number, because 213257027 - 210 = 213256003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213257021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4952 + ... + 21237.

It is an arithmetic number, because the mean of its divisors is an integer number (28285200).

Almost surely, 2213257027 is an apocalyptic number.

213257027 is a deficient number, since it is larger than the sum of its proper divisors (13024573).

213257027 is a wasteful number, since it uses less digits than its factorization.

213257027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26685.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 213257027 is about 14603.3224644257. The cubic root of 213257027 is about 597.4493828026.

The spelling of 213257027 in words is "two hundred thirteen million, two hundred fifty-seven thousand, twenty-seven".

Divisors: 1 17 479 8143 26189 445213 12544531 213257027