Search a number
-
+
2021002 = 21010501
BaseRepresentation
bin111101101011010001010
310210200021221
413231122022
51004133002
6111152254
723115064
oct7553212
93720257
102021002
111160455
1281568a
13559b79
143a8734
1529dc37
hex1ed68a

2021002 has 4 divisors (see below), whose sum is σ = 3031506. Its totient is φ = 1010500.

The previous prime is 2020999. The next prime is 2021003. The reversal of 2021002 is 2001202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 35721 = 1409^2 + 189^2 .

It is not an unprimeable number, because it can be changed into a prime (2021003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505249 + ... + 505252.

22021002 is an apocalyptic number.

2021002 is a deficient number, since it is larger than the sum of its proper divisors (1010504).

2021002 is a wasteful number, since it uses less digits than its factorization.

2021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010503.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2021002 is about 1421.6194990222. The cubic root of 2021002 is about 126.4315846002.

Adding to 2021002 its reverse (2001202), we get a palindrome (4022204).

The spelling of 2021002 in words is "two million, twenty-one thousand, two".

Divisors: 1 2 1010501 2021002