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69421492 = 2275094871
BaseRepresentation
bin1000010001101…
…00100110110100
311211121222101101
410020310212310
5120232441432
610515535444
71502034010
oct410644664
9154558341
1069421492
1136206438
121b2ba584
13114c840a
149311540
1561644e7
hex42349b4

69421492 has 24 divisors (see below), whose sum is σ = 139144320. Its totient is φ = 29687520.

The previous prime is 69421483. The next prime is 69421507. The reversal of 69421492 is 29412496.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 11817 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (5797680).

Almost surely, 269421492 is an apocalyptic number.

It is an amenable number.

69421492 is an abundant number, since it is smaller than the sum of its proper divisors (69722828).

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

69421492 is a wasteful number, since it uses less digits than its factorization.

69421492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5391 (or 5389 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 69421492 is about 8331.9560728559. The cubic root of 69421492 is about 410.9900562553.

The spelling of 69421492 in words is "sixty-nine million, four hundred twenty-one thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 509 1018 2036 3563 4871 7126 9742 14252 19484 34097 68194 136388 2479339 4958678 9917356 17355373 34710746 69421492