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30472333 = 191603807
BaseRepresentation
bin111010000111…
…1100010001101
32010100011011221
41310033202031
530300103313
63005043341
7520003423
oct164174215
963304157
1030472333
1116223351
12a256551
13640bc88
144093113
152a1dc8d
hex1d0f88d

30472333 has 4 divisors (see below), whose sum is σ = 32076160. Its totient is φ = 28868508.

The previous prime is 30472327. The next prime is 30472339. The reversal of 30472333 is 33327403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (30472327) and next prime (30472339).

It is a cyclic number.

It is not a de Polignac number, because 30472333 - 217 = 30341261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30472298 and 30472307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472339) 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 3 ways as a sum of consecutive naturals, for example, 801885 + ... + 801922.

It is an arithmetic number, because the mean of its divisors is an integer number (8019040).

Almost surely, 230472333 is an apocalyptic number.

It is an amenable number.

30472333 is a deficient number, since it is larger than the sum of its proper divisors (1603827).

30472333 is a wasteful number, since it uses less digits than its factorization.

30472333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603826.

The product of its (nonzero) digits is 4536, while the sum is 25.

The square root of 30472333 is about 5520.1750878029. The cubic root of 30472333 is about 312.3454869215.

Adding to 30472333 its reverse (33327403), we get a palindrome (63799736).

The spelling of 30472333 in words is "thirty million, four hundred seventy-two thousand, three hundred thirty-three".

Divisors: 1 19 1603807 30472333