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69440492 = 22111578193
BaseRepresentation
bin1000010001110…
…01001111101100
311211122221110002
410020321033230
5120234043432
610520203432
71502143262
oct410711754
9154587402
1069440492
1136219740
121b309578
1311503c64
149318432
156169e62
hex42393ec

69440492 has 12 divisors (see below), whose sum is σ = 132568296. Its totient is φ = 31563840.

The previous prime is 69440491. The next prime is 69440513. The reversal of 69440492 is 29404496.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (69440491) 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, 789053 + ... + 789140.

It is an arithmetic number, because the mean of its divisors is an integer number (11047358).

Almost surely, 269440492 is an apocalyptic number.

It is an amenable number.

69440492 is a deficient number, since it is larger than the sum of its proper divisors (63127804).

69440492 is a wasteful number, since it uses less digits than its factorization.

69440492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578208 (or 1578206 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 69440492 is about 8333.0961832923. The cubic root of 69440492 is about 411.0275475208.

It can be divided in two parts, 694404 and 92, that added together give a palindrome (694496).

The spelling of 69440492 in words is "sixty-nine million, four hundred forty thousand, four hundred ninety-two".

Divisors: 1 2 4 11 22 44 1578193 3156386 6312772 17360123 34720246 69440492