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69494742 = 232171911953
BaseRepresentation
bin1000010010001…
…10011111010110
311211202200212100
410021012133112
5120242312432
610521302530
71502460402
oct411063726
9154680770
1069494742
1136256479
121b334a46
1311522865
149330102
15617b07c
hex42467d6

69494742 has 48 divisors (see below), whose sum is σ = 167834160. Its totient is φ = 20653056.

The previous prime is 69494741. The next prime is 69494771. The reversal of 69494742 is 24749496.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69494741) 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 23 ways as a sum of consecutive naturals, for example, 163 + ... + 11790.

It is an arithmetic number, because the mean of its divisors is an integer number (3496545).

Almost surely, 269494742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69494742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83917080).

69494742 is an abundant number, since it is smaller than the sum of its proper divisors (98339418).

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

69494742 is a wasteful number, since it uses less digits than its factorization.

69494742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11997 (or 11994 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 69494742 is about 8336.3506404181. The cubic root of 69494742 is about 411.1345573242.

The spelling of 69494742 in words is "sixty-nine million, four hundred ninety-four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 17 18 19 34 38 51 57 102 114 153 171 306 323 342 646 969 1938 2907 5814 11953 23906 35859 71718 107577 203201 215154 227107 406402 454214 609603 681321 1219206 1362642 1828809 2043963 3657618 3860819 4087926 7721638 11582457 23164914 34747371 69494742