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164061347 = 257638371
BaseRepresentation
bin10011100011101…
…10000010100011
3102102201011212012
421301312002203
5313444430342
624140223135
74031332652
oct1161660243
9372634765
10164061347
118467679a
1246b3aaab
1327cb3228
1417b09199
15e60ab82
hex9c760a3

164061347 has 4 divisors (see below), whose sum is σ = 164699976. Its totient is φ = 163422720.

The previous prime is 164061329. The next prime is 164061353. The reversal of 164061347 is 743160461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164061347 - 212 = 164057251 is a prime.

It is a super-2 number, since 2×1640613472 = 53832251158908818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164061397) 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 3 ways as a sum of consecutive naturals, for example, 318929 + ... + 319442.

It is an arithmetic number, because the mean of its divisors is an integer number (41174994).

Almost surely, 2164061347 is an apocalyptic number.

164061347 is a deficient number, since it is larger than the sum of its proper divisors (638629).

164061347 is an equidigital number, since it uses as much as digits as its factorization.

164061347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638628.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 164061347 is about 12808.6434488591. The cubic root of 164061347 is about 547.4386100486.

The spelling of 164061347 in words is "one hundred sixty-four million, sixty-one thousand, three hundred forty-seven".

Divisors: 1 257 638371 164061347