Search a number
-
+
12402213001 = 39173166253
BaseRepresentation
bin10111000110011101…
…01100000010001001
31012000022221200212021
423203032230002021
5200344431304001
65410354244441
7616224033253
oct134316540211
935008850767
1012402213001
1152947a9212
1224a1586721
13122859c499
148591dacd3
154c8c1eba1
hex2e33ac089

12402213001 has 4 divisors (see below), whose sum is σ = 12405383172. Its totient is φ = 12399042832.

The previous prime is 12402212983. The next prime is 12402213013. The reversal of 12402213001 is 10031220421.

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 10370367225 + 2031845776 = 101835^2 + 45076^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402213001 - 29 = 12402212489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12402213091) 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, 1579210 + ... + 1587043.

It is an arithmetic number, because the mean of its divisors is an integer number (3101345793).

Almost surely, 212402213001 is an apocalyptic number.

It is an amenable number.

12402213001 is a deficient number, since it is larger than the sum of its proper divisors (3170171).

12402213001 is an equidigital number, since it uses as much as digits as its factorization.

12402213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170170.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12402213001 its reverse (10031220421), we get a palindrome (22433433422).

The spelling of 12402213001 in words is "twelve billion, four hundred two million, two hundred thirteen thousand, one".

Divisors: 1 3917 3166253 12402213001