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30564353 = 1131971373
BaseRepresentation
bin111010010011…
…0000000000001
32010111211102002
41310212000001
530311024403
63011033345
7520535621
oct164460001
963454362
1030564353
11162864a6
12a29b855
136441b21
1440b8881
152a3b188
hex1d26001

30564353 has 8 divisors (see below), whose sum is σ = 31013928. Its totient is φ = 30118144.

The previous prime is 30564349. The next prime is 30564361. The reversal of 30564353 is 35346503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13490929 + 17073424 = 3673^2 + 4132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 6-Lehmer number, since φ(30564353) divides (30564353-1)6.

It is a cyclic number.

It is not a de Polignac number, because 30564353 - 22 = 30564349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30564383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21575 + ... + 22947.

It is an arithmetic number, because the mean of its divisors is an integer number (3876741).

It is a Proth number, since it is equal to 3731 ⋅ 213 + 1 and 3731 < 213.

Almost surely, 230564353 is an apocalyptic number.

It is an amenable number.

30564353 is a deficient number, since it is larger than the sum of its proper divisors (449575).

30564353 is a wasteful number, since it uses less digits than its factorization.

30564353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 30564353 is about 5528.5036854469. The cubic root of 30564353 is about 312.6595767390.

The spelling of 30564353 in words is "thirty million, five hundred sixty-four thousand, three hundred fifty-three".

Divisors: 1 113 197 1373 22261 155149 270481 30564353