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30144441 = 310048147
BaseRepresentation
bin111001011111…
…1011110111001
32002201111101210
41302333132321
530204110231
62554033333
7514136445
oct162773671
962644353
1030144441
1116019a68
12a118849
136325962
144009825
1529a6a46
hex1cbf7b9

30144441 has 4 divisors (see below), whose sum is σ = 40192592. Its totient is φ = 20096292.

The previous prime is 30144407. The next prime is 30144449. The reversal of 30144441 is 14444103.

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 not a de Polignac number, because 30144441 - 29 = 30143929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30144449) 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, 5024071 + ... + 5024076.

It is an arithmetic number, because the mean of its divisors is an integer number (10048148).

Almost surely, 230144441 is an apocalyptic number.

It is an amenable number.

30144441 is a deficient number, since it is larger than the sum of its proper divisors (10048151).

30144441 is a wasteful number, since it uses less digits than its factorization.

30144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048150.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30144441 is about 5490.3953409568. The cubic root of 30144441 is about 311.2211321430.

Adding to 30144441 its reverse (14444103), we get a palindrome (44588544).

The spelling of 30144441 in words is "thirty million, one hundred forty-four thousand, four hundred forty-one".

Divisors: 1 3 10048147 30144441