Search a number
-
+
20213130002 = 213777428077
BaseRepresentation
bin10010110100110010…
…111110001100010010
31221011200120101122112
4102310302332030102
5312344030130002
613141421305322
71313620525112
oct226462761422
957150511575
1020213130002
11863286a81a
123b01405242
131ba18ab370
14d9a725042
157d481a852
hex4b4cbe312

20213130002 has 8 divisors (see below), whose sum is σ = 32651979276. Its totient is φ = 9329136912.

The previous prime is 20213130001. The next prime is 20213130071. The reversal of 20213130002 is 20003131202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20204063881 + 9066121 = 142141^2 + 3011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20213130001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388714013 + ... + 388714064.

Almost surely, 220213130002 is an apocalyptic number.

20213130002 is a deficient number, since it is larger than the sum of its proper divisors (12438849274).

20213130002 is a wasteful number, since it uses less digits than its factorization.

20213130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777428092.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20213130002 its reverse (20003131202), we get a palindrome (40216261204).

The spelling of 20213130002 in words is "twenty billion, two hundred thirteen million, one hundred thirty thousand, two".

Divisors: 1 2 13 26 777428077 1554856154 10106565001 20213130002