Search a number
-
+
1013031031 = 1889536279
BaseRepresentation
bin111100011000011…
…010000001110111
32121121012022022211
4330120122001313
54033313443111
6244304434251
734050423145
oct7430320167
92547168284
101013031031
1147a914231
12243318987
13131b5055c
1498780595
155de07521
hex3c61a077

1013031031 has 4 divisors (see below), whose sum is σ = 1013569200. Its totient is φ = 1012492864.

The previous prime is 1013031017. The next prime is 1013031049. The reversal of 1013031031 is 1301303101.

It is a happy number.

1013031031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013031031 - 29 = 1013030519 is a prime.

It is a super-2 number, since 2×10130310312 = 2052463739537845922, 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 (1013031631) 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, 266251 + ... + 270028.

It is an arithmetic number, because the mean of its divisors is an integer number (253392300).

Almost surely, 21013031031 is an apocalyptic number.

1013031031 is a deficient number, since it is larger than the sum of its proper divisors (538169).

1013031031 is an equidigital number, since it uses as much as digits as its factorization.

1013031031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538168.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1013031031 is about 31828.1484067170. The cubic root of 1013031031 is about 1004.3249448855.

Adding to 1013031031 its reverse (1301303101), we get a palindrome (2314334132).

The spelling of 1013031031 in words is "one billion, thirteen million, thirty-one thousand, thirty-one".

Divisors: 1 1889 536279 1013031031