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30909068 = 227727267
BaseRepresentation
bin111010111101…
…0001010001100
32011011100021022
41311322022030
530403042233
63022253312
7523502621
oct165721214
964140238
1030909068
11164a1493
12a427238
1365329b8
144168348
152aa8398
hex1d7a28c

30909068 has 6 divisors (see below), whose sum is σ = 54090876. Its totient is φ = 15454532.

The previous prime is 30909059. The next prime is 30909071. The reversal of 30909068 is 86090903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3863630 + ... + 3863637.

It is an arithmetic number, because the mean of its divisors is an integer number (9015146).

Almost surely, 230909068 is an apocalyptic number.

It is an amenable number.

30909068 is a deficient number, since it is larger than the sum of its proper divisors (23181808).

30909068 is a wasteful number, since it uses less digits than its factorization.

30909068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7727271 (or 7727269 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 30909068 is about 5559.5924311050. The cubic root of 30909068 is about 313.8306117105.

The spelling of 30909068 in words is "thirty million, nine hundred nine thousand, sixty-eight".

Divisors: 1 2 4 7727267 15454534 30909068