Search a number
-
+
2021032031401 = 2387870957887
BaseRepresentation
bin11101011010001110111…
…001010111010010101001
321011012122012022202011001
4131122032321113102221
5231103033200001101
64144241014235001
7266005025551615
oct35321671272251
97135565282131
102021032031401
1170a129991319
12287833655a61
131187759b2976
146db65c60345
1537889655901
hex1d68ee574a9

2021032031401 has 4 divisors (see below), whose sum is σ = 2108902989312. Its totient is φ = 1933161073492.

The previous prime is 2021032031377. The next prime is 2021032031407. The reversal of 2021032031401 is 1041302301202.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2021032031401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021032031407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43935478921 + ... + 43935478966.

It is an arithmetic number, because the mean of its divisors is an integer number (527225747328).

Almost surely, 22021032031401 is an apocalyptic number.

It is an amenable number.

2021032031401 is a deficient number, since it is larger than the sum of its proper divisors (87870957911).

2021032031401 is an equidigital number, since it uses as much as digits as its factorization.

2021032031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87870957910.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2021032031401 its reverse (1041302301202), we get a palindrome (3062334332603).

The spelling of 2021032031401 in words is "two trillion, twenty-one billion, thirty-two million, thirty-one thousand, four hundred one".

Divisors: 1 23 87870957887 2021032031401