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169422407 = 7112200291
BaseRepresentation
bin10100001100100…
…10111001000111
3102210210112211222
422012102321013
5321333004112
624451150555
74125031610
oct1206227107
9383715758
10169422407
11876a8620
12488a545b
132913c45b
1418702c07
15ed19372
hexa192e47

169422407 has 8 divisors (see below), whose sum is σ = 211228032. Its totient is φ = 132017400.

The previous prime is 169422389. The next prime is 169422497. The reversal of 169422407 is 704224961.

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 169422407 - 222 = 165228103 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 (169422497) 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 7 ways as a sum of consecutive naturals, for example, 1100069 + ... + 1100222.

It is an arithmetic number, because the mean of its divisors is an integer number (26403504).

Almost surely, 2169422407 is an apocalyptic number.

169422407 is a deficient number, since it is larger than the sum of its proper divisors (41805625).

169422407 is a wasteful number, since it uses less digits than its factorization.

169422407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200309.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 169422407 is about 13016.2362839647. The cubic root of 169422407 is about 553.3377279453.

The spelling of 169422407 in words is "one hundred sixty-nine million, four hundred twenty-two thousand, four hundred seven".

Divisors: 1 7 11 77 2200291 15402037 24203201 169422407