Search a number
-
+
8389930 = 25838993
BaseRepresentation
bin100000000000…
…010100101010
3120210020211011
4200000110222
54121434210
6455454134
7131212303
oct40002452
916706734
108389930
11481052a
12298734a
131979a73
1411857aa
15b0ad8a
hex80052a

8389930 has 8 divisors (see below), whose sum is σ = 15101892. Its totient is φ = 3355968.

The previous prime is 8389921. The next prime is 8389937. The reversal of 8389930 is 399838.

It can be written as a sum of positive squares in 2 ways, for example, as 6869641 + 1520289 = 2621^2 + 1233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8389937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419487 + ... + 419506.

Almost surely, 28389930 is an apocalyptic number.

8389930 is a deficient number, since it is larger than the sum of its proper divisors (6711962).

8389930 is a wasteful number, since it uses less digits than its factorization.

8389930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839000.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 8389930 is about 2896.5375882249. The cubic root of 8389930 is about 203.1980078390.

The spelling of 8389930 in words is "eight million, three hundred eighty-nine thousand, nine hundred thirty".

Divisors: 1 2 5 10 838993 1677986 4194965 8389930