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162008923 = 190185223
BaseRepresentation
bin10011010100000…
…00111101011011
3102021211220110111
421222000331123
5312433241143
624024225151
74005024136
oct1152007533
9367756414
10162008923
11834a477a
124630b1b7
1327744c8b
141773321d
15e35299d
hex9a80f5b

162008923 has 4 divisors (see below), whose sum is σ = 162096048. Its totient is φ = 161921800.

The previous prime is 162008911. The next prime is 162008927. The reversal of 162008923 is 329800261.

162008923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 162008923 - 213 = 162000731 is a prime.

It is a super-2 number, since 2×1620089232 = 52493782263239858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162008927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40711 + ... + 44512.

It is an arithmetic number, because the mean of its divisors is an integer number (40524012).

Almost surely, 2162008923 is an apocalyptic number.

162008923 is a deficient number, since it is larger than the sum of its proper divisors (87125).

162008923 is an equidigital number, since it uses as much as digits as its factorization.

162008923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87124.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 162008923 is about 12728.2725850761. The cubic root of 162008923 is about 545.1461864110.

The spelling of 162008923 in words is "one hundred sixty-two million, eight thousand, nine hundred twenty-three".

Divisors: 1 1901 85223 162008923