Search a number
-
+
1102012001 = 7913949519
BaseRepresentation
bin100000110101111…
…0101111001100001
32211210122000021022
41001223311321201
54224103341001
6301203535225
736210642656
oct10153657141
92753560238
101102012001
11516069a22
1226908a515
1314740670c
14a6503c2d
1566b3211b
hex41af5e61

1102012001 has 4 divisors (see below), whose sum is σ = 1115961600. Its totient is φ = 1088062404.

The previous prime is 1102011979. The next prime is 1102012003. The reversal of 1102012001 is 1002102011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1002102011 = 2334300867.

It is a cyclic number.

It is not a de Polignac number, because 1102012001 - 222 = 1097817697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102012001.

It is not an unprimeable number, because it can be changed into a prime (1102012003) 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, 6974681 + ... + 6974838.

It is an arithmetic number, because the mean of its divisors is an integer number (278990400).

Almost surely, 21102012001 is an apocalyptic number.

It is an amenable number.

1102012001 is a deficient number, since it is larger than the sum of its proper divisors (13949599).

1102012001 is an equidigital number, since it uses as much as digits as its factorization.

1102012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13949598.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1102012001 is about 33196.5661025354. The cubic root of 1102012001 is about 1032.9091104866.

Adding to 1102012001 its reverse (1002102011), we get a palindrome (2104114012).

The spelling of 1102012001 in words is "one billion, one hundred two million, twelve thousand, one".

Divisors: 1 79 13949519 1102012001