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30555103 = 172105727
BaseRepresentation
bin111010010001…
…1101111011111
32010111100201111
41310203233133
530310230403
63010522451
7520466635
oct164435737
963440644
1030555103
111627a557
12a296427
13643a857
1440b5355
152a3856d
hex1d23bdf

30555103 has 6 divisors (see below), whose sum is σ = 32458496. Its totient is φ = 28757472.

The previous prime is 30555101. The next prime is 30555131. The reversal of 30555103 is 30155503.

It is a happy number.

It is not a de Polignac number, because 30555103 - 21 = 30555101 is a prime.

It is a super-2 number, since 2×305551032 = 1867228638681218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555101) 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 5 ways as a sum of consecutive naturals, for example, 52575 + ... + 53152.

Almost surely, 230555103 is an apocalyptic number.

30555103 is a deficient number, since it is larger than the sum of its proper divisors (1903393).

30555103 is a wasteful number, since it uses less digits than its factorization.

30555103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105761 (or 105744 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 30555103 is about 5527.6670485839. The cubic root of 30555103 is about 312.6280324441.

The spelling of 30555103 in words is "thirty million, five hundred fifty-five thousand, one hundred three".

Divisors: 1 17 289 105727 1797359 30555103