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1103232013 = 1384864001
BaseRepresentation
bin100000111000001…
…1111110000001101
32211212220222210221
41001300133300031
54224411411023
6301250031341
736224213602
oct10160376015
92755828727
101103232013
115168225a4
12269578551
13147742b10
14a67406a9
1566cc385d
hex41c1fc0d

1103232013 has 4 divisors (see below), whose sum is σ = 1188096028. Its totient is φ = 1018368000.

The previous prime is 1103232001. The next prime is 1103232029. The reversal of 1103232013 is 3102323011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132411049 + 970820964 = 11507^2 + 31158^2 .

It is not a de Polignac number, because 1103232013 - 25 = 1103231981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103232083) 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, 42431988 + ... + 42432013.

It is an arithmetic number, because the mean of its divisors is an integer number (297024007).

Almost surely, 21103232013 is an apocalyptic number.

1103232013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1103232013 is a deficient number, since it is larger than the sum of its proper divisors (84864015).

1103232013 is an equidigital number, since it uses as much as digits as its factorization.

1103232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84864014.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1103232013 is about 33214.9365948514. The cubic root of 1103232013 is about 1033.2901398410.

Adding to 1103232013 its reverse (3102323011), we get a palindrome (4205555024).

The spelling of 1103232013 in words is "one billion, one hundred three million, two hundred thirty-two thousand, thirteen".

Divisors: 1 13 84864001 1103232013