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4432142431 = 23918544529
BaseRepresentation
bin1000010000010110…
…10010000001011111
3102102212212011102101
410020023102001133
533034112024211
62011444105531
7214555406023
oct41013220137
912385764371
104432142431
111974913232
12a383952a7
135583081b2
143008c4383
151ae1875c1
hex1082d205f

4432142431 has 4 divisors (see below), whose sum is σ = 4450687200. Its totient is φ = 4413597664.

The previous prime is 4432142401. The next prime is 4432142443. The reversal of 4432142431 is 1342412344.

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

It is a cyclic number.

It is not a de Polignac number, because 4432142431 - 223 = 4423753823 is a prime.

It is a super-2 number, since 2×44321424312 = 39287773057341179522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4432142431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4432142401) 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 3 ways as a sum of consecutive naturals, for example, 9272026 + ... + 9272503.

It is an arithmetic number, because the mean of its divisors is an integer number (1112671800).

Almost surely, 24432142431 is an apocalyptic number.

4432142431 is a deficient number, since it is larger than the sum of its proper divisors (18544769).

4432142431 is a wasteful number, since it uses less digits than its factorization.

4432142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18544768.

The product of its digits is 9216, while the sum is 28.

The square root of 4432142431 is about 66574.3376309521. The cubic root of 4432142431 is about 1642.6230123932.

Adding to 4432142431 its reverse (1342412344), we get a palindrome (5774554775).

The spelling of 4432142431 in words is "four billion, four hundred thirty-two million, one hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 239 18544529 4432142431