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164312053 = 988716619
BaseRepresentation
bin10011100101100…
…11001111110101
3102110011220202121
421302303033311
5314030441203
624145435541
74033425613
oct1162631765
9373156677
10164312053
1184828094
124703bbb1
1328070389
1417b726b3
15e65a0bd
hex9cb33f5

164312053 has 4 divisors (see below), whose sum is σ = 164338560. Its totient is φ = 164285548.

The previous prime is 164312011. The next prime is 164312063. The reversal of 164312053 is 350213461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164312053 is a prime.

It is a super-2 number, since 2×1643120532 = 53996901522149618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164312003) 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 3 ways as a sum of consecutive naturals, for example, 1578 + ... + 18196.

It is an arithmetic number, because the mean of its divisors is an integer number (41084640).

Almost surely, 2164312053 is an apocalyptic number.

It is an amenable number.

164312053 is a deficient number, since it is larger than the sum of its proper divisors (26507).

164312053 is an equidigital number, since it uses as much as digits as its factorization.

164312053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26506.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 164312053 is about 12818.4263074685. The cubic root of 164312053 is about 547.7173193978.

The spelling of 164312053 in words is "one hundred sixty-four million, three hundred twelve thousand, fifty-three".

Divisors: 1 9887 16619 164312053