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20020242444 = 22397120114321
BaseRepresentation
bin10010101001010011…
…001010100000001100
31220200020121200122220
4102221103022200030
5312000140224234
613110331135340
71306056152526
oct225123124014
956606550586
1020020242444
1185439a5514
123a688a4550
131b70944507
14d7cc74a16
157c2918a49
hex4a94ca80c

20020242444 has 48 divisors (see below), whose sum is σ = 47238080736. Its totient is φ = 6598656000.

The previous prime is 20020242433. The next prime is 20020242467. The reversal of 20020242444 is 44424202002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1390804 + ... + 1405124.

It is an arithmetic number, because the mean of its divisors is an integer number (984126682).

Almost surely, 220020242444 is an apocalyptic number.

It is an amenable number.

20020242444 is an abundant number, since it is smaller than the sum of its proper divisors (27217838292).

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

20020242444 is a wasteful number, since it uses less digits than its factorization.

20020242444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15626 (or 15624 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20020242444 its reverse (44424202002), we get a palindrome (64444444446).

The spelling of 20020242444 in words is "twenty billion, twenty million, two hundred forty-two thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 97 194 291 388 582 1164 1201 2402 3603 4804 7206 14321 14412 28642 42963 57284 85926 116497 171852 232994 349491 465988 698982 1389137 1397964 2778274 4167411 5556548 8334822 16669644 17199521 34399042 51598563 68798084 103197126 206394252 1668353537 3336707074 5005060611 6673414148 10010121222 20020242444