Search a number
-
+
20040424044 = 22311091505893
BaseRepresentation
bin10010101010100000…
…001001101001101100
31220201122121000121120
4102222200021221230
5312020322032134
613112331500540
71306422536154
oct225240115154
956648530546
1020040424044
11855432a223
123a735b7750
131b74b8c4a4
14d81809764
157c45a3649
hex4aa809a6c

20040424044 has 24 divisors (see below), whose sum is σ = 46803185520. Its totient is φ = 6674113344.

The previous prime is 20040423961. The next prime is 20040424049. The reversal of 20040424044 is 44042404002.

It is not an unprimeable number, because it can be changed into a prime (20040424049) 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, 739639 + ... + 766254.

It is an arithmetic number, because the mean of its divisors is an integer number (1950132730).

Almost surely, 220040424044 is an apocalyptic number.

It is an amenable number.

20040424044 is an abundant number, since it is smaller than the sum of its proper divisors (26762761476).

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

20040424044 is a wasteful number, since it uses less digits than its factorization.

20040424044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507009 (or 1507007 counting only the distinct ones).

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

Adding to 20040424044 its reverse (44042404002), we get a palindrome (64082828046).

The spelling of 20040424044 in words is "twenty billion, forty million, four hundred twenty-four thousand, forty-four".

Divisors: 1 2 3 4 6 12 1109 2218 3327 4436 6654 13308 1505893 3011786 4517679 6023572 9035358 18070716 1670035337 3340070674 5010106011 6680141348 10020212022 20040424044