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20201002 = 210100501
BaseRepresentation
bin100110100001…
…1111000101010
31102000022120021
41031003320222
520132413002
62000551054
7333464023
oct115037052
942008507
1020201002
1110448348
12692248a
134253a73
14297bc4a
151b90737
hex1343e2a

20201002 has 4 divisors (see below), whose sum is σ = 30301506. Its totient is φ = 10100500.

The previous prime is 20200993. The next prime is 20201021. The reversal of 20201002 is 20010202.

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., 13549761 + 6651241 = 3681^2 + 2579^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050249 + ... + 5050252.

Almost surely, 220201002 is an apocalyptic number.

20201002 is a deficient number, since it is larger than the sum of its proper divisors (10100504).

20201002 is a wasteful number, since it uses less digits than its factorization.

20201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100503.

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

The square root of 20201002 is about 4494.5524805035. The cubic root of 20201002 is about 272.3480711890.

Adding to 20201002 its reverse (20010202), we get a palindrome (40211204).

The spelling of 20201002 in words is "twenty million, two hundred one thousand, two".

Divisors: 1 2 10100501 20201002