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69422905 = 513884581
BaseRepresentation
bin1000010001101…
…00111100111001
311211122001022201
410020310330321
5120233013110
610515550201
71502041066
oct410647471
9154561281
1069422905
1136207502
121b2bb361
13114c8c56
149311c6d
156164b3a
hex4234f39

69422905 has 4 divisors (see below), whose sum is σ = 83307492. Its totient is φ = 55538320.

The previous prime is 69422893. The next prime is 69422923. The reversal of 69422905 is 50922496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19678096 + 49744809 = 4436^2 + 7053^2 .

It is not a de Polignac number, because 69422905 - 29 = 69422393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 6942286 + ... + 6942295.

It is an arithmetic number, because the mean of its divisors is an integer number (20826873).

Almost surely, 269422905 is an apocalyptic number.

It is an amenable number.

69422905 is a deficient number, since it is larger than the sum of its proper divisors (13884587).

69422905 is a wasteful number, since it uses less digits than its factorization.

69422905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13884586.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 69422905 is about 8332.0408664384. The cubic root of 69422905 is about 410.9928446569.

The spelling of 69422905 in words is "sixty-nine million, four hundred twenty-two thousand, nine hundred five".

Divisors: 1 5 13884581 69422905