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164460233 = 723494319
BaseRepresentation
bin10011100110101…
…11011011001001
3102110110110000202
421303113123021
5314100211413
624152541545
74034613620
oct1163273311
9373413022
10164460233
1184919453
12470b18b5
13280c2962
1417bb06b7
15e688e58
hex9cd76c9

164460233 has 4 divisors (see below), whose sum is σ = 187954560. Its totient is φ = 140965908.

The previous prime is 164460223. The next prime is 164460271. The reversal of 164460233 is 332064461.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332064461 = 565958679.

It is a cyclic number.

It is not a de Polignac number, because 164460233 - 24 = 164460217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164460196 and 164460205.

It is not an unprimeable number, because it can be changed into a prime (164460223) 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, 11747153 + ... + 11747166.

It is an arithmetic number, because the mean of its divisors is an integer number (46988640).

Almost surely, 2164460233 is an apocalyptic number.

It is an amenable number.

164460233 is a deficient number, since it is larger than the sum of its proper divisors (23494327).

164460233 is an equidigital number, since it uses as much as digits as its factorization.

164460233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23494326.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 164460233 is about 12824.2049656109. The cubic root of 164460233 is about 547.8819175220.

The spelling of 164460233 in words is "one hundred sixty-four million, four hundred sixty thousand, two hundred thirty-three".

Divisors: 1 7 23494319 164460233