Search a number
-
+
1103311031 = 3533125527
BaseRepresentation
bin100000111000011…
…0011000010110111
32211220002000012112
41001300303002313
54224421423111
6301251441235
736224663144
oct10160630267
92756060175
101103311031
115168769a9
122695b621b
1314776ca84
14a67613cb
1566cdbe8b
hex41c330b7

1103311031 has 4 divisors (see below), whose sum is σ = 1106436912. Its totient is φ = 1100185152.

The previous prime is 1103311007. The next prime is 1103311073. The reversal of 1103311031 is 1301133011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301133011 = 2934440727.

It is a cyclic number.

It is not a de Polignac number, because 1103311031 - 218 = 1103048887 is a prime.

It is a super-2 number, since 2×11033110312 = 2434590462252565922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103310997 and 1103311015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103311091) 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, 1562411 + ... + 1563116.

It is an arithmetic number, because the mean of its divisors is an integer number (276609228).

Almost surely, 21103311031 is an apocalyptic number.

1103311031 is a deficient number, since it is larger than the sum of its proper divisors (3125881).

1103311031 is an equidigital number, since it uses as much as digits as its factorization.

1103311031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125880.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1103311031 is about 33216.1260685228. The cubic root of 1103311031 is about 1033.3148087441.

Adding to 1103311031 its reverse (1301133011), we get a palindrome (2404444042).

The spelling of 1103311031 in words is "one billion, one hundred three million, three hundred eleven thousand, thirty-one".

Divisors: 1 353 3125527 1103311031