Search a number
-
+
69608742 = 2371924591
BaseRepresentation
bin1000010011000…
…10010100100110
311211222111020120
410021202110212
5120304434432
610523542410
71503443640
oct411422446
9154874216
1069608742
1136324095
121b38aa06
1311562708
14935d890
15619ec2c
hex4262526

69608742 has 48 divisors (see below), whose sum is σ = 167956992. Its totient is φ = 18837360.

The previous prime is 69608719. The next prime is 69608767. The reversal of 69608742 is 24780696.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 69608694 and 69608703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12867 + ... + 17457.

It is an arithmetic number, because the mean of its divisors is an integer number (3499104).

Almost surely, 269608742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69608742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83978496).

69608742 is an abundant number, since it is smaller than the sum of its proper divisors (98348250).

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

69608742 is a wasteful number, since it uses less digits than its factorization.

69608742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641 (or 4622 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 69608742 is about 8343.1853629175. The cubic root of 69608742 is about 411.3592445124.

The spelling of 69608742 in words is "sixty-nine million, six hundred eight thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 361 399 722 798 1083 2166 2527 4591 5054 7581 9182 13773 15162 27546 32137 64274 87229 96411 174458 192822 261687 523374 610603 1221206 1657351 1831809 3314702 3663618 4972053 9944106 11601457 23202914 34804371 69608742