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30664269 = 324183101
BaseRepresentation
bin111010011111…
…0011001001101
32010200220110200
41310332121031
530322224034
63013124113
7521433126
oct164763115
963626420
1030664269
1116344579
12a329639
13647844c
14410304d
152a5aa99
hex1d3e64d

30664269 has 12 divisors (see below), whose sum is σ = 45373692. Its totient is φ = 19944000.

The previous prime is 30664259. The next prime is 30664303. The reversal of 30664269 is 96246603.

30664269 is a `hidden beast` number, since 3 + 0 + 6 + 642 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8054244 + 22610025 = 2838^2 + 4755^2 .

It is not a de Polignac number, because 30664269 - 25 = 30664237 is a prime.

It is a super-2 number, since 2×306642692 = 1880594786608722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664219) 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, 41182 + ... + 41919.

It is an arithmetic number, because the mean of its divisors is an integer number (3781141).

Almost surely, 230664269 is an apocalyptic number.

It is an amenable number.

30664269 is a deficient number, since it is larger than the sum of its proper divisors (14709423).

30664269 is a wasteful number, since it uses less digits than its factorization.

30664269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83148 (or 83145 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 30664269 is about 5537.5327538535. The cubic root of 30664269 is about 312.9999047317. Note that the first 4 decimals are identical.

The spelling of 30664269 in words is "thirty million, six hundred sixty-four thousand, two hundred sixty-nine".

Divisors: 1 3 9 41 123 369 83101 249303 747909 3407141 10221423 30664269