Search a number
-
+
1102010209 = 1397928131
BaseRepresentation
bin100000110101111…
…0101011101100001
32211210121220210221
41001223311131201
54224103311314
6301203523041
736210634516
oct10153653541
92753556727
101102010209
11516068643
12269089481
13147405961
14a650330d
1566b31824
hex41af5761

1102010209 has 4 divisors (see below), whose sum is σ = 1109938480. Its totient is φ = 1094081940.

The previous prime is 1102010197. The next prime is 1102010213. The reversal of 1102010209 is 9020102011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1102010209 - 29 = 1102009697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102010192 and 1102010201.

It is not an unprimeable number, because it can be changed into a prime (1102010249) 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, 3963927 + ... + 3964204.

It is an arithmetic number, because the mean of its divisors is an integer number (277484620).

Almost surely, 21102010209 is an apocalyptic number.

It is an amenable number.

1102010209 is a deficient number, since it is larger than the sum of its proper divisors (7928271).

1102010209 is an equidigital number, since it uses as much as digits as its factorization.

1102010209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928270.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1102010209 is about 33196.5391117809. The cubic root of 1102010209 is about 1032.9085506094.

The spelling of 1102010209 in words is "one billion, one hundred two million, ten thousand, two hundred nine".

Divisors: 1 139 7928131 1102010209