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164265371 = 425938569
BaseRepresentation
bin10011100101001…
…11110110011011
3102110002112201122
421302213312123
5314022442441
624144435455
74033142534
oct1162476633
9373075648
10164265371
11847a6006
1247018b8b
132805505a
1417b5d68b
15e64b34b
hex9ca7d9b

164265371 has 4 divisors (see below), whose sum is σ = 164308200. Its totient is φ = 164222544.

The previous prime is 164265347. The next prime is 164265377. The reversal of 164265371 is 173562461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173562461 = 223778307.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164265371 is a prime.

It is a super-2 number, since 2×1642653712 = 53966224219535282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164265377) 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, 15026 + ... + 23543.

It is an arithmetic number, because the mean of its divisors is an integer number (41077050).

Almost surely, 2164265371 is an apocalyptic number.

164265371 is a deficient number, since it is larger than the sum of its proper divisors (42829).

164265371 is an equidigital number, since it uses as much as digits as its factorization.

164265371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42828.

The product of its digits is 30240, while the sum is 35.

The square root of 164265371 is about 12816.6052837715. The cubic root of 164265371 is about 547.6654446038.

The spelling of 164265371 in words is "one hundred sixty-four million, two hundred sixty-five thousand, three hundred seventy-one".

Divisors: 1 4259 38569 164265371