Search a number
-
+
30645104 = 247273617
BaseRepresentation
bin111010011100…
…1101101110000
32010122221011212
41310321231300
530321120404
63012455252
7521323220
oct164715560
963587155
1030645104
1116331136
12a31a528
13646c7c9
1440da080
152a5506e
hex1d39b70

30645104 has 20 divisors (see below), whose sum is σ = 67857264. Its totient is φ = 13133568.

The previous prime is 30645089. The next prime is 30645137. The reversal of 30645104 is 40154603.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30645104.

It is a congruent number.

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, 136697 + ... + 136920.

Almost surely, 230645104 is an apocalyptic number.

It is an amenable number.

30645104 is an abundant number, since it is smaller than the sum of its proper divisors (37212160).

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

30645104 is a wasteful number, since it uses less digits than its factorization.

30645104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273632 (or 273626 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30645104 is about 5535.8020195813. The cubic root of 30645104 is about 312.9346834007.

Adding to 30645104 its reverse (40154603), we get a palindrome (70799707).

The spelling of 30645104 in words is "thirty million, six hundred forty-five thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 56 112 273617 547234 1094468 1915319 2188936 3830638 4377872 7661276 15322552 30645104