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30238083 = 338771277
BaseRepresentation
bin111001101011…
…0010110000011
32002220020212000
41303112112003
530220104313
63000035043
7515006451
oct163262603
962806760
1030238083
1116083357
12a162a83
136359475
1440319d1
1529c4673
hex1cd6583

30238083 has 16 divisors (see below), whose sum is σ = 44883360. Its totient is φ = 20119968.

The previous prime is 30238081. The next prime is 30238099. The reversal of 30238083 is 38083203.

It is not a de Polignac number, because 30238083 - 21 = 30238081 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30238081) 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 15 ways as a sum of consecutive naturals, for example, 23041 + ... + 24317.

It is an arithmetic number, because the mean of its divisors is an integer number (2805210).

Almost surely, 230238083 is an apocalyptic number.

30238083 is a deficient number, since it is larger than the sum of its proper divisors (14645277).

30238083 is a wasteful number, since it uses less digits than its factorization.

30238083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30238083 is about 5498.9165296447. The cubic root of 30238083 is about 311.5430626312.

The spelling of 30238083 in words is "thirty million, two hundred thirty-eight thousand, eighty-three".

Divisors: 1 3 9 27 877 1277 2631 3831 7893 11493 23679 34479 1119929 3359787 10079361 30238083