Search a number
-
+
69442992 = 2432482243
BaseRepresentation
bin1000010001110…
…01110110110000
311211200001212200
410020321312300
5120234133432
610520223200
71502153463
oct410716660
9154601780
1069442992
1136220603
121b30ab00
1311505138
1493192da
15616aa7c
hex4239db0

69442992 has 30 divisors (see below), whose sum is σ = 194344332. Its totient is φ = 23147616.

The previous prime is 69442987. The next prime is 69442999. The reversal of 69442992 is 29924496.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (69442999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240978 + ... + 241265.

Almost surely, 269442992 is an apocalyptic number.

It is an amenable number.

69442992 is an abundant number, since it is smaller than the sum of its proper divisors (124901340).

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

69442992 is a wasteful number, since it uses less digits than its factorization.

69442992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482257 (or 482248 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 69442992 is about 8333.2461862110. The cubic root of 69442992 is about 411.0324800729.

The spelling of 69442992 in words is "sixty-nine million, four hundred forty-two thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 482243 964486 1446729 1928972 2893458 3857944 4340187 5786916 7715888 8680374 11573832 17360748 23147664 34721496 69442992