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30486075 = 352406481
BaseRepresentation
bin111010001001…
…0111000111011
32010100212000220
41310102320323
530301023300
63005231123
7520061454
oct164227073
963325026
1030486075
1116232704
12a2624a3
1364152c9
14409812b
152a22da0
hex1d12e3b

30486075 has 12 divisors (see below), whose sum is σ = 50403768. Its totient is φ = 16259200.

The previous prime is 30486073. The next prime is 30486091. The reversal of 30486075 is 57068403.

It is not a de Polignac number, because 30486075 - 21 = 30486073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30486073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203166 + ... + 203315.

It is an arithmetic number, because the mean of its divisors is an integer number (4200314).

Almost surely, 230486075 is an apocalyptic number.

30486075 is a deficient number, since it is larger than the sum of its proper divisors (19917693).

30486075 is a wasteful number, since it uses less digits than its factorization.

30486075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406494 (or 406489 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 30486075 is about 5521.4196544005. The cubic root of 30486075 is about 312.3924323110.

The spelling of 30486075 in words is "thirty million, four hundred eighty-six thousand, seventy-five".

Divisors: 1 3 5 15 25 75 406481 1219443 2032405 6097215 10162025 30486075