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2031431041 = 14931360637
BaseRepresentation
bin111100100010101…
…0010110110000001
312020120111101111201
41321011102312001
513130021243131
6533324341201
7101224610323
oct17105226601
95216441451
102031431041
11952765232
124883a4801
13264b30803
14153b1b613
15bd520761
hex79152d81

2031431041 has 4 divisors (see below), whose sum is σ = 2032793172. Its totient is φ = 2030068912.

The previous prime is 2031430969. The next prime is 2031431071. The reversal of 2031431041 is 1401341302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1401341302 = 2700670651.

It can be written as a sum of positive squares in 2 ways, for example, as 1324668816 + 706762225 = 36396^2 + 26585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031431041 - 215 = 2031398273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031431071) 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, 678826 + ... + 681811.

It is an arithmetic number, because the mean of its divisors is an integer number (508198293).

Almost surely, 22031431041 is an apocalyptic number.

It is an amenable number.

2031431041 is a deficient number, since it is larger than the sum of its proper divisors (1362131).

2031431041 is a wasteful number, since it uses less digits than its factorization.

2031431041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362130.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2031431041 is about 45071.3993681137. The cubic root of 2031431041 is about 1266.4868789686.

Adding to 2031431041 its reverse (1401341302), we get a palindrome (3432772343).

The spelling of 2031431041 in words is "two billion, thirty-one million, four hundred thirty-one thousand, forty-one".

Divisors: 1 1493 1360637 2031431041