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213362931 = 3331214867
BaseRepresentation
bin11001011011110…
…10100011110011
3112212110221220210
430231322203303
5414110103211
633101035203
75200361235
oct1455724363
9485427823
10213362931
11aa48a801
125b555b03
1335285772
14204a0255
1513ae89a6
hexcb7a8f3

213362931 has 8 divisors (see below), whose sum is σ = 285344704. Its totient is φ = 141811560.

The previous prime is 213362917. The next prime is 213362953. The reversal of 213362931 is 139263312.

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

It is not a de Polignac number, because 213362931 - 221 = 211265779 is a prime.

It is a super-2 number, since 2×2133629312 = 91047480649821522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213362911) by changing a digit.

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, 106441 + ... + 108426.

It is an arithmetic number, because the mean of its divisors is an integer number (35668088).

Almost surely, 2213362931 is an apocalyptic number.

213362931 is a deficient number, since it is larger than the sum of its proper divisors (71981773).

213362931 is a wasteful number, since it uses less digits than its factorization.

213362931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215201.

The product of its digits is 5832, while the sum is 30.

The square root of 213362931 is about 14606.9480385192. The cubic root of 213362931 is about 597.5482647473.

The spelling of 213362931 in words is "two hundred thirteen million, three hundred sixty-two thousand, nine hundred thirty-one".

Divisors: 1 3 331 993 214867 644601 71120977 213362931