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2021021203030 = 25202102120303
BaseRepresentation
bin11101011010001110010…
…000000011101001010110
321011012121102221121102021
4131122032100003221112
5231103022411444110
64144235550203354
7266004534532204
oct35321620035126
97135542847367
102021021203030
1170a123865855
1228782bab355a
1311877369104b
146db64642074
15378887172da
hex1d68e403a56

2021021203030 has 8 divisors (see below), whose sum is σ = 3637838165472. Its totient is φ = 808408481208.

The previous prime is 2021021203027. The next prime is 2021021203051. The reversal of 2021021203030 is 303021201202.

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

It is a junction number, because it is equal to n+sod(n) for n = 2021021202995 and 2021021203013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101051060142 + ... + 101051060161.

It is an arithmetic number, because the mean of its divisors is an integer number (454729770684).

Almost surely, 22021021203030 is an apocalyptic number.

2021021203030 is a deficient number, since it is larger than the sum of its proper divisors (1616816962442).

2021021203030 is a wasteful number, since it uses less digits than its factorization.

2021021203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202102120310.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2021021203030 its reverse (303021201202), we get a palindrome (2324042404232).

The spelling of 2021021203030 in words is "two trillion, twenty-one billion, twenty-one million, two hundred three thousand, thirty".

Divisors: 1 2 5 10 202102120303 404204240606 1010510601515 2021021203030