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30303101 = 128923509
BaseRepresentation
bin111001110011…
…0001101111101
32010000120001002
41303212031331
530224144401
63001300045
7515400143
oct163461575
963016032
1030303101
1116118194
12a194625
13637cc3a
14404b593
1529d8a6b
hex1ce637d

30303101 has 4 divisors (see below), whose sum is σ = 30327900. Its totient is φ = 30278304.

The previous prime is 30303079. The next prime is 30303107. The reversal of 30303101 is 10130303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27825625 + 2477476 = 5275^2 + 1574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30303101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30303107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10466 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (7581975).

Almost surely, 230303101 is an apocalyptic number.

It is an amenable number.

30303101 is a deficient number, since it is larger than the sum of its proper divisors (24799).

30303101 is a wasteful number, since it uses less digits than its factorization.

30303101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24798.

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 30303101 is about 5504.8252469992. The cubic root of 30303101 is about 311.7661963317.

Adding to 30303101 its reverse (10130303), we get a palindrome (40433404).

It can be divided in two parts, 30303 and 101, that multiplied together give a palindrome (3060603).

The spelling of 30303101 in words is "thirty million, three hundred three thousand, one hundred one".

Divisors: 1 1289 23509 30303101