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30523329 = 32191031733
BaseRepresentation
bin111010001101…
…1111111000001
32010102202010200
41310123333001
530303221304
63010115413
7520305204
oct164337701
963382120
1030523329
11162586a1
12a27bb69
136429255
1440a793b
152a2de39
hex1d1bfc1

30523329 has 24 divisors (see below), whose sum is σ = 46887360. Its totient is φ = 19079712.

The previous prime is 30523327. The next prime is 30523343. The reversal of 30523329 is 92332503.

It is not a de Polignac number, because 30523329 - 21 = 30523327 is a prime.

It is a super-2 number, since 2×305233292 = 1863347226484482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30523327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16747 + ... + 18479.

It is an arithmetic number, because the mean of its divisors is an integer number (1953640).

Almost surely, 230523329 is an apocalyptic number.

It is an amenable number.

30523329 is a deficient number, since it is larger than the sum of its proper divisors (16364031).

30523329 is a wasteful number, since it uses less digits than its factorization.

30523329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861 (or 1858 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 30523329 is about 5524.7922132873. The cubic root of 30523329 is about 312.5196284204.

The spelling of 30523329 in words is "thirty million, five hundred twenty-three thousand, three hundred twenty-nine".

Divisors: 1 3 9 19 57 103 171 309 927 1733 1957 5199 5871 15597 17613 32927 98781 178499 296343 535497 1606491 3391481 10174443 30523329