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69681468 = 22341141629
BaseRepresentation
bin1000010011101…
…00000100111100
311212010012000010
410021310010330
5120314301333
610525303220
71504165653
oct411640474
9155105003
1069681468
113637379a
121b404b10
131158984c
14937c19a
1561b6563
hex427413c

69681468 has 24 divisors (see below), whose sum is σ = 166556880. Its totient is φ = 22660480.

The previous prime is 69681463. The next prime is 69681481. The reversal of 69681468 is 86418696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69681463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70323 + ... + 71306.

It is an arithmetic number, because the mean of its divisors is an integer number (6939870).

Almost surely, 269681468 is an apocalyptic number.

It is an amenable number.

69681468 is an abundant number, since it is smaller than the sum of its proper divisors (96875412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69681468 is a wasteful number, since it uses less digits than its factorization.

69681468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141677 (or 141675 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 69681468 is about 8347.5426324158. The cubic root of 69681468 is about 411.5024549715.

The spelling of 69681468 in words is "sixty-nine million, six hundred eighty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 141629 283258 424887 566516 849774 1699548 5806789 11613578 17420367 23227156 34840734 69681468