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24438042 = 2321357669
BaseRepresentation
bin101110100111…
…0010100011010
31200222120200200
41131032110122
522224004132
62231443030
7414501636
oct135162432
950876620
1024438042
1112881732
128226476
1350a84a5
143361dc6
15222ad7c
hex174e51a

24438042 has 12 divisors (see below), whose sum is σ = 52949130. Its totient is φ = 8146008.

The previous prime is 24438041. The next prime is 24438053. The reversal of 24438042 is 24083442.

It is a happy number.

24438042 is a `hidden beast` number, since 244 + 380 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23415921 + 1022121 = 4839^2 + 1011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 24437997 and 24438015.

It is not an unprimeable number, because it can be changed into a prime (24438041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678817 + ... + 678852.

Almost surely, 224438042 is an apocalyptic number.

24438042 is an abundant number, since it is smaller than the sum of its proper divisors (28511088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24438042 is a wasteful number, since it uses less digits than its factorization.

24438042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357677 (or 1357674 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 24438042 is about 4943.4848032537. The cubic root of 24438042 is about 290.1942495642.

The spelling of 24438042 in words is "twenty-four million, four hundred thirty-eight thousand, forty-two".

Divisors: 1 2 3 6 9 18 1357669 2715338 4073007 8146014 12219021 24438042