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30590055 = 355171481
BaseRepresentation
bin111010010110…
…0010001100111
32010120010200000
41310230101213
530312340210
63011352343
7521003556
oct164542147
963503600
1030590055
11162a3841
12a2b26b3
136450732
1440c3d9d
152a43ac0
hex1d2c467

30590055 has 48 divisors (see below), whose sum is σ = 58260384. Its totient is φ = 15344640.

The previous prime is 30590039. The next prime is 30590107. The reversal of 30590055 is 55009503.

It is not a de Polignac number, because 30590055 - 24 = 30590039 is a prime.

It is a super-3 number, since 3×305900553 (a number of 23 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 19915 + ... + 21395.

It is an arithmetic number, because the mean of its divisors is an integer number (1213758).

Almost surely, 230590055 is an apocalyptic number.

30590055 is a deficient number, since it is larger than the sum of its proper divisors (27670329).

30590055 is a wasteful number, since it uses less digits than its factorization.

30590055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 27.

The square root of 30590055 is about 5530.8276957432. The cubic root of 30590055 is about 312.7471921491.

Adding to 30590055 its reverse (55009503), we get a palindrome (85599558).

The spelling of 30590055 in words is "thirty million, five hundred ninety thousand, fifty-five".

Divisors: 1 3 5 9 15 17 27 45 51 81 85 135 153 243 255 405 459 765 1215 1377 1481 2295 4131 4443 6885 7405 13329 20655 22215 25177 39987 66645 75531 119961 125885 199935 226593 359883 377655 599805 679779 1132965 1799415 2039337 3398895 6118011 10196685 30590055