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164431006 = 2312652113
BaseRepresentation
bin10011100110100…
…00010010011110
3102110101221221021
421303100102132
5314043243011
624152154354
74034432455
oct1163202236
9373357837
10164431006
11848a94a3
12470989ba
13280b256c
1417ba3b9c
15e680471
hex9cd049e

164431006 has 8 divisors (see below), whose sum is σ = 254602944. Its totient is φ = 79563360.

The previous prime is 164430991. The next prime is 164431009. The reversal of 164431006 is 600134461.

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

It is a super-3 number, since 3×1644310063 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164431009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325995 + ... + 1326118.

It is an arithmetic number, because the mean of its divisors is an integer number (31825368).

Almost surely, 2164431006 is an apocalyptic number.

164431006 is a deficient number, since it is larger than the sum of its proper divisors (90171938).

164431006 is a wasteful number, since it uses less digits than its factorization.

164431006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652146.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 164431006 is about 12823.0653901476. The cubic root of 164431006 is about 547.8494600434.

Adding to 164431006 its reverse (600134461), we get a palindrome (764565467).

The spelling of 164431006 in words is "one hundred sixty-four million, four hundred thirty-one thousand, six".

Divisors: 1 2 31 62 2652113 5304226 82215503 164431006