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2021202 = 232112289
BaseRepresentation
bin111101101011101010010
310210200120100
413231131102
51004134302
6111153230
723115501
oct7553522
93720510
102021202
111160617
12815816
13559ca1
143a8838
1529dd1c
hex1ed752

2021202 has 12 divisors (see below), whose sum is σ = 4379310. Its totient is φ = 673728.

The previous prime is 2021197. The next prime is 2021203.

2021202 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 962361 = 1029^2 + 981^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2021203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56127 + ... + 56162.

22021202 is an apocalyptic number.

2021202 is an abundant number, since it is smaller than the sum of its proper divisors (2358108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021202 is a wasteful number, since it uses less digits than its factorization.

2021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112297 (or 112294 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2021202 is about 1421.6898395923. The cubic root of 2021202 is about 126.4357550534.

The spelling of 2021202 in words is "two million, twenty-one thousand, two hundred two".

Divisors: 1 2 3 6 9 18 112289 224578 336867 673734 1010601 2021202