Search a number
-
+
30448904 = 2317241929
BaseRepresentation
bin111010000100…
…1110100001000
32010021222001012
41310021310020
530243331104
63004343052
7516545213
oct164116410
963258035
1030448904
1116207792
12a244a88
136401405
14408877a
152a16d6e
hex1d09d08

30448904 has 32 divisors (see below), whose sum is σ = 60766200. Its totient is φ = 14254080.

The previous prime is 30448877. The next prime is 30448907. The reversal of 30448904 is 40984403.

It can be written as a sum of positive squares in 4 ways, for example, as 25020004 + 5428900 = 5002^2 + 2330^2 .

It is not an unprimeable number, because it can be changed into a prime (30448907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32312 + ... + 33240.

Almost surely, 230448904 is an apocalyptic number.

30448904 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30448904 is a deficient number, since it is larger than the sum of its proper divisors (30317296).

30448904 is a wasteful number, since it uses less digits than its factorization.

30448904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30448904 is about 5518.0525550234. The cubic root of 30448904 is about 312.2654162696.

The spelling of 30448904 in words is "thirty million, four hundred forty-eight thousand, nine hundred four".

Divisors: 1 2 4 8 17 34 68 136 241 482 929 964 1858 1928 3716 4097 7432 8194 15793 16388 31586 32776 63172 126344 223889 447778 895556 1791112 3806113 7612226 15224452 30448904