Search a number
-
+
68970884 = 2217242721
BaseRepresentation
bin1000001110001…
…10100110000100
311210210002021012
410013012212010
5120124032014
610502141352
71465146203
oct407064604
9153702235
1068970884
1135a28934
121b121858
131139b298
14923523a
1560c5c3e
hex41c6984

68970884 has 6 divisors (see below), whose sum is σ = 120699054. Its totient is φ = 34485440.

The previous prime is 68970883. The next prime is 68970917. The reversal of 68970884 is 48807986.

It can be written as a sum of positive squares in only one way, i.e., 56580484 + 12390400 = 7522^2 + 3520^2 .

It is not an unprimeable number, because it can be changed into a prime (68970883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8621357 + ... + 8621364.

It is an arithmetic number, because the mean of its divisors is an integer number (20116509).

Almost surely, 268970884 is an apocalyptic number.

It is an amenable number.

68970884 is a deficient number, since it is larger than the sum of its proper divisors (51728170).

68970884 is a wasteful number, since it uses less digits than its factorization.

68970884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17242725 (or 17242723 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 68970884 is about 8304.8711007456. The cubic root of 68970884 is about 410.0988934558.

The spelling of 68970884 in words is "sixty-eight million, nine hundred seventy thousand, eight hundred eighty-four".

Divisors: 1 2 4 17242721 34485442 68970884