Search a number
-
+
1200230332021 = 7941182211983
BaseRepresentation
bin10001011101110011010…
…011010111011001110101
311020202000010010012010001
4101131303103113121311
5124131032431111041
62315213405231301
7152466553330660
oct21356323273165
94222003105101
101200230332021
11423018806a36
12174742862531
1389248232146
144213cd646d7
152134a037131
hex117734d7675

1200230332021 has 8 divisors (see below), whose sum is σ = 1373149511424. Its totient is φ = 1027675578480.

The previous prime is 1200230332009. The next prime is 1200230332039. The reversal of 1200230332021 is 1202330320021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1200230332021 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 1200230332021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200230333021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91099405 + ... + 91112578.

It is an arithmetic number, because the mean of its divisors is an integer number (171643688928).

Almost surely, 21200230332021 is an apocalyptic number.

It is an amenable number.

1200230332021 is a deficient number, since it is larger than the sum of its proper divisors (172919179403).

1200230332021 is an equidigital number, since it uses as much as digits as its factorization.

1200230332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182212931.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1200230332021 its reverse (1202330320021), we get a palindrome (2402560652042).

The spelling of 1200230332021 in words is "one trillion, two hundred billion, two hundred thirty million, three hundred thirty-two thousand, twenty-one".

Divisors: 1 7 941 6587 182211983 1275483881 171461476003 1200230332021