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30255093 = 3311101869
BaseRepresentation
bin111001101101…
…0011111110101
32002221010012000
41303122133311
530221130333
63000245513
7515110161
oct163323765
962833160
1030255093
1116095110
12a170899
13636412b
144037ca1
1529c9713
hex1cda7f5

30255093 has 16 divisors (see below), whose sum is σ = 48897600. Its totient is φ = 18336240.

The previous prime is 30255073. The next prime is 30255109. The reversal of 30255093 is 39055203.

It is not a de Polignac number, because 30255093 - 28 = 30254837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50638 + ... + 51231.

It is an arithmetic number, because the mean of its divisors is an integer number (3056100).

Almost surely, 230255093 is an apocalyptic number.

30255093 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30255093 is a deficient number, since it is larger than the sum of its proper divisors (18642507).

30255093 is a wasteful number, since it uses less digits than its factorization.

30255093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101889 (or 101883 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 30255093 is about 5500.4629805135. The cubic root of 30255093 is about 311.6014697081.

It can be divided in two parts, 3025 and 5093, that added together give a palindrome (8118).

The spelling of 30255093 in words is "thirty million, two hundred fifty-five thousand, ninety-three".

Divisors: 1 3 9 11 27 33 99 297 101869 305607 916821 1120559 2750463 3361677 10085031 30255093