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20203004442 = 2317198068671
BaseRepresentation
bin10010110100001100…
…010110001000011010
31221010222111221222210
4102310030112020122
5312333432120232
613140420255550
71313435463405
oct226414261032
957128457883
1020203004442
118628084295
123ab9b415b6
131b9c7745ca
14d9924ad3c
157d39ba5cc
hex4b431621a

20203004442 has 16 divisors (see below), whose sum is σ = 42782833152. Its totient is φ = 6338197440.

The previous prime is 20203004441. The next prime is 20203004443. The reversal of 20203004442 is 24440030202.

It is an interprime number because it is at equal distance from previous prime (20203004441) and next prime (20203004443).

It is a super-2 number, since 2×202030044422 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20203004441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99034234 + ... + 99034437.

It is an arithmetic number, because the mean of its divisors is an integer number (2673927072).

Almost surely, 220203004442 is an apocalyptic number.

20203004442 is an abundant number, since it is smaller than the sum of its proper divisors (22579828710).

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

20203004442 is a wasteful number, since it uses less digits than its factorization.

20203004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198068693.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20203004442 its reverse (24440030202), we get a palindrome (44643034644).

The spelling of 20203004442 in words is "twenty billion, two hundred three million, four thousand, four hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 198068671 396137342 594206013 1188412026 3367167407 6734334814 10101502221 20203004442