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4040043031 = 53110369109
BaseRepresentation
bin1111000011001110…
…0010101000010111
3101102120001110011101
43300303202220113
531233222334111
61504520050531
7202054541053
oct36063425027
911376043141
104040043031
111793554142
12949003a47
134c5001a0b
142a47b8c63
15189a34bc1
hexf0ce2a17

4040043031 has 8 divisors (see below), whose sum is σ = 4120061760. Its totient is φ = 3960164832.

The previous prime is 4040043023. The next prime is 4040043053. The reversal of 4040043031 is 1303400404.

4040043031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4040043031 - 23 = 4040043023 is a prime.

It is a super-2 number, since 2×40400430312 = 32643895384663333922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040043001) 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, 23905 + ... + 93013.

It is an arithmetic number, because the mean of its divisors is an integer number (515007720).

Almost surely, 24040043031 is an apocalyptic number.

4040043031 is a deficient number, since it is larger than the sum of its proper divisors (80018729).

4040043031 is a wasteful number, since it uses less digits than its factorization.

4040043031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70265.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4040043031 is about 63561.3328290085. The cubic root of 4040043031 is about 1592.6805029905.

Adding to 4040043031 its reverse (1303400404), we get a palindrome (5343443435).

The spelling of 4040043031 in words is "four billion, forty million, forty-three thousand, thirty-one".

Divisors: 1 53 1103 58459 69109 3662777 76227227 4040043031