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30227508 = 2232839653
BaseRepresentation
bin111001101001…
…1110000110100
32002212201100100
41303103300310
530214240013
62555514100
7514633563
oct163236064
962781310
1030227508
1116076413
12a158930
1363546cc
14402bbda
1529c1473
hex1cd3c34

30227508 has 18 divisors (see below), whose sum is σ = 76408514. Its totient is φ = 10075824.

The previous prime is 30227507. The next prime is 30227539. The reversal of 30227508 is 80572203.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 219024 = 5478^2 + 468^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30227507) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 419791 + ... + 419862.

Almost surely, 230227508 is an apocalyptic number.

It is an amenable number.

30227508 is an abundant number, since it is smaller than the sum of its proper divisors (46181006).

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

30227508 is a wasteful number, since it uses less digits than its factorization.

30227508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839663 (or 839658 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 30227508 is about 5497.9548925032. The cubic root of 30227508 is about 311.5067403107.

The spelling of 30227508 in words is "thirty million, two hundred twenty-seven thousand, five hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 839653 1679306 2518959 3358612 5037918 7556877 10075836 15113754 30227508