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164622693 = 3117146861
BaseRepresentation
bin10011100111111…
…11000101100101
3102110202200212210
421303333011211
5314120411233
624200234033
74036161354
oct1163770545
9373680783
10164622693
1184a1a514
124716b919
132814b8a1
1417c1399b
15e6bc163
hex9cff165

164622693 has 8 divisors (see below), whose sum is σ = 219689056. Its totient is φ = 109652400.

The previous prime is 164622691. The next prime is 164622701. The reversal of 164622693 is 396226461.

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

It is not a de Polignac number, because 164622693 - 21 = 164622691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164622691) 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 7 ways as a sum of consecutive naturals, for example, 19918 + ... + 26943.

It is an arithmetic number, because the mean of its divisors is an integer number (27461132).

Almost surely, 2164622693 is an apocalyptic number.

It is an amenable number.

164622693 is a deficient number, since it is larger than the sum of its proper divisors (55066363).

164622693 is a wasteful number, since it uses less digits than its factorization.

164622693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48035.

The product of its digits is 93312, while the sum is 39.

The square root of 164622693 is about 12830.5375179686. The cubic root of 164622693 is about 548.0622642680.

The spelling of 164622693 in words is "one hundred sixty-four million, six hundred twenty-two thousand, six hundred ninety-three".

Divisors: 1 3 1171 3513 46861 140583 54874231 164622693