Search a number
-
+
1031331041 = 13229346433
BaseRepresentation
bin111101011110001…
…101110011100001
32122212122001012222
4331132031303201
54103010043131
6250201000425
734362112016
oct7536156341
92585561188
101031331041
1148a183304
12249483115
13135889c70
149ad8570d
156081e87b
hex3d78dce1

1031331041 has 8 divisors (see below), whose sum is σ = 1115517480. Its totient is φ = 947837952.

The previous prime is 1031330981. The next prime is 1031331053. The reversal of 1031331041 is 1401331301.

It can be written as a sum of positive squares in 4 ways, for example, as 24601600 + 1006729441 = 4960^2 + 31729^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1031331041 is a prime.

It is a super-2 number, since 2×10313310412 = 2127287432260287362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031331071) 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, 170240 + ... + 176193.

It is an arithmetic number, because the mean of its divisors is an integer number (139439685).

Almost surely, 21031331041 is an apocalyptic number.

It is an amenable number.

1031331041 is a deficient number, since it is larger than the sum of its proper divisors (84186439).

1031331041 is a wasteful number, since it uses less digits than its factorization.

1031331041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346675.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1031331041 is about 32114.3432285326. The cubic root of 1031331041 is about 1010.3364696043.

Adding to 1031331041 its reverse (1401331301), we get a palindrome (2432662342).

The spelling of 1031331041 in words is "one billion, thirty-one million, three hundred thirty-one thousand, forty-one".

Divisors: 1 13 229 2977 346433 4503629 79333157 1031331041