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30203101 = 172412549
BaseRepresentation
bin111001100110…
…1110011011101
32002211110212101
41303031303131
530212444401
62555205101
7514502455
oct163156335
962743771
1030203101
111605a045
12a146791
136346576
144022d65
1529b9101
hex1ccdcdd

30203101 has 12 divisors (see below), whose sum is σ = 32879700. Its totient is φ = 27722240.

The previous prime is 30203099. The next prime is 30203153. The reversal of 30203101 is 10130203.

It can be written as a sum of positive squares in 6 ways, for example, as 2102500 + 28100601 = 1450^2 + 5301^2 .

It is not a de Polignac number, because 30203101 - 21 = 30203099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10575 + ... + 13123.

It is an arithmetic number, because the mean of its divisors is an integer number (2739975).

Almost surely, 230203101 is an apocalyptic number.

It is an amenable number.

30203101 is a deficient number, since it is larger than the sum of its proper divisors (2676599).

30203101 is a wasteful number, since it uses less digits than its factorization.

30203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30203101 is about 5495.7348007341. The cubic root of 30203101 is about 311.4228763873.

Adding to 30203101 its reverse (10130203), we get a palindrome (40333304).

It can be divided in two parts, 30203 and 101, that multiplied together give a palindrome (3050503).

The spelling of 30203101 in words is "thirty million, two hundred three thousand, one hundred one".

Divisors: 1 17 41 289 697 2549 11849 43333 104509 736661 1776653 30203101