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164612123 = 13101125371
BaseRepresentation
bin10011100111111…
…00100000011011
3102110202011101022
421303330200123
5314120041443
624200113055
74036115504
oct1163744033
9373664338
10164612123
1184a12585
124716578b
1328146b30
1417c0dbab
15e6b8e68
hex9cfc81b

164612123 has 8 divisors (see below), whose sum is σ = 179031216. Its totient is φ = 150444000.

The previous prime is 164612113. The next prime is 164612141. The reversal of 164612123 is 321216461.

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

It is a cyclic number.

It is not a de Polignac number, because 164612123 - 210 = 164611099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164612092 and 164612101.

It is not an unprimeable number, because it can be changed into a prime (164612113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61373 + ... + 63998.

It is an arithmetic number, because the mean of its divisors is an integer number (22378902).

Almost surely, 2164612123 is an apocalyptic number.

164612123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

164612123 is a deficient number, since it is larger than the sum of its proper divisors (14419093).

164612123 is a wasteful number, since it uses less digits than its factorization.

164612123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125485.

The product of its digits is 1728, while the sum is 26.

The square root of 164612123 is about 12830.1256034382. The cubic root of 164612123 is about 548.0505341272.

Adding to 164612123 its reverse (321216461), we get a palindrome (485828584).

The spelling of 164612123 in words is "one hundred sixty-four million, six hundred twelve thousand, one hundred twenty-three".

Divisors: 1 13 101 1313 125371 1629823 12662471 164612123