Search a number
-
+
30984704 = 2973829
BaseRepresentation
bin111011000110…
…0101000000000
32011022012000122
41312030220000
530413002304
63024035412
7524236262
oct166145000
964265018
1030984704
11165432a3
12a462b68
13655b25a
144187b32
152ac09be
hex1d8ca00

30984704 has 40 divisors (see below), whose sum is σ = 62832660. Its totient is φ = 15261696.

The previous prime is 30984697. The next prime is 30984719. The reversal of 30984704 is 40748903.

It can be written as a sum of positive squares in 2 ways, for example, as 30824704 + 160000 = 5552^2 + 400^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36962 + ... + 37790.

Almost surely, 230984704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30984704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31416330).

30984704 is an abundant number, since it is smaller than the sum of its proper divisors (31847956).

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

30984704 is an frugal number, since it uses more digits than its factorization.

30984704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30984704 is about 5566.3905719955. The cubic root of 30984704 is about 314.0863894718.

The spelling of 30984704 in words is "thirty million, nine hundred eighty-four thousand, seven hundred four".

Divisors: 1 2 4 8 16 32 64 73 128 146 256 292 512 584 829 1168 1658 2336 3316 4672 6632 9344 13264 18688 26528 37376 53056 60517 106112 121034 212224 242068 424448 484136 968272 1936544 3873088 7746176 15492352 30984704