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4045542431 = 7975958089
BaseRepresentation
bin1111000100100010…
…0001010000011111
3101102221101211220212
43301020201100133
531241124324211
61505234003035
7202152354230
oct36110412037
911387354825
104045542431
11179666a9a7
1294aa1647b
134c61a8bb8
142a540b087
1518a26e38b
hexf122141f

4045542431 has 8 divisors (see below), whose sum is σ = 4671142560. Its totient is φ = 3431858688.

The previous prime is 4045542421. The next prime is 4045542443. The reversal of 4045542431 is 1342455404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4045542431 - 210 = 4045541407 is a prime.

It is a super-2 number, since 2×40455424312 = 32732827122042779522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045542421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2978366 + ... + 2979723.

It is an arithmetic number, because the mean of its divisors is an integer number (583892820).

Almost surely, 24045542431 is an apocalyptic number.

4045542431 is a deficient number, since it is larger than the sum of its proper divisors (625600129).

4045542431 is an equidigital number, since it uses as much as digits as its factorization.

4045542431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958193.

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 4045542431 is about 63604.5786952480. The cubic root of 4045542431 is about 1593.4028398462.

Adding to 4045542431 its reverse (1342455404), we get a palindrome (5387997835).

The spelling of 4045542431 in words is "four billion, forty-five million, five hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 7 97 679 5958089 41706623 577934633 4045542431