Search a number
-
+
30864818 = 297159097
BaseRepresentation
bin111010110111…
…1010110110010
32011002002120102
41311233112302
530400133233
63021312402
7523226615
oct165572662
964062512
1030864818
1116471216
12a405702
13651880a
14415617c
152a9a1e8
hex1d6f5b2

30864818 has 8 divisors (see below), whose sum is σ = 46774812. Its totient is φ = 15273216.

The previous prime is 30864803. The next prime is 30864833. The reversal of 30864818 is 81846803.

It is an interprime number because it is at equal distance from previous prime (30864803) and next prime (30864833).

It can be written as a sum of positive squares in 2 ways, for example, as 27112849 + 3751969 = 5207^2 + 1937^2 .

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

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, 79355 + ... + 79742.

Almost surely, 230864818 is an apocalyptic number.

30864818 is a deficient number, since it is larger than the sum of its proper divisors (15909994).

30864818 is a wasteful number, since it uses less digits than its factorization.

30864818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159196.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 30864818 is about 5555.6113974971. The cubic root of 30864818 is about 313.6807782613.

The spelling of 30864818 in words is "thirty million, eight hundred sixty-four thousand, eight hundred eighteen".

Divisors: 1 2 97 194 159097 318194 15432409 30864818