Search a number
-
+
1031042011 = 1963185999
BaseRepresentation
bin111101011101000…
…111001111011011
32122212002100202011
4331131013033123
54102421321021
6250150450351
734356466246
oct7535071733
92585070664
101031042011
11489aa613a
122493639b7
131357b853c
149ad0c25d
15607b3de1
hex3d7473db

1031042011 has 8 divisors (see below), whose sum is σ = 1087040000. Its totient is φ = 975217320.

The previous prime is 1031041997. The next prime is 1031042039. The reversal of 1031042011 is 1102401301.

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 1031042011 - 211 = 1031039963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031041982 and 1031042000.

It is not an unprimeable number, because it can be changed into a prime (1031042041) 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, 31011 + ... + 54988.

It is an arithmetic number, because the mean of its divisors is an integer number (135880000).

Almost surely, 21031042011 is an apocalyptic number.

1031042011 is a deficient number, since it is larger than the sum of its proper divisors (55997989).

1031042011 is an equidigital number, since it uses as much as digits as its factorization.

1031042011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86649.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1031042011 is about 32109.8428990240. The cubic root of 1031042011 is about 1010.2420786921.

Adding to 1031042011 its reverse (1102401301), we get a palindrome (2133443312).

The spelling of 1031042011 in words is "one billion, thirty-one million, forty-two thousand, eleven".

Divisors: 1 19 631 11989 85999 1633981 54265369 1031042011