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30240141 = 310080047
BaseRepresentation
bin111001101011…
…0110110001101
32002220100200020
41303112312031
530220141031
63000052353
7515015451
oct163266615
962810606
1030240141
1116084958
12a1640b9
13635a399
144032661
1529c5096
hex1cd6d8d

30240141 has 4 divisors (see below), whose sum is σ = 40320192. Its totient is φ = 20160092.

The previous prime is 30240139. The next prime is 30240143. The reversal of 30240141 is 14104203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (30240139) and next prime (30240143).

It is a cyclic number.

It is not a de Polignac number, because 30240141 - 21 = 30240139 is a prime.

It is a super-2 number, since 2×302401412 = 1828932255399762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30240141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240143) 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, 5040021 + ... + 5040026.

It is an arithmetic number, because the mean of its divisors is an integer number (10080048).

Almost surely, 230240141 is an apocalyptic number.

It is an amenable number.

30240141 is a deficient number, since it is larger than the sum of its proper divisors (10080051).

30240141 is a wasteful number, since it uses less digits than its factorization.

30240141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080050.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30240141 is about 5499.1036542331. The cubic root of 30240141 is about 311.5501303310.

Adding to 30240141 its reverse (14104203), we get a palindrome (44344344).

It can be divided in two parts, 30240 and 141, that added together give a triangular number (30381 = T246).

The spelling of 30240141 in words is "thirty million, two hundred forty thousand, one hundred forty-one".

Divisors: 1 3 10080047 30240141