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42550044 = 22319431433
BaseRepresentation
bin1010001001010…
…0001100011100
32222001202200120
42202110030130
541343100134
64115554540
71024445415
oct242241434
988052616
1042550044
1122022529
12122bba50
138a7a454
14591880c
153b07649
hex289431c

42550044 has 48 divisors (see below), whose sum is σ = 104993280. Its totient is φ = 13374720.

The previous prime is 42550019. The next prime is 42550051. The reversal of 42550044 is 44005524.

It is a junction number, because it is equal to n+sod(n) for n = 42549996 and 42550023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98052 + ... + 98484.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 242550044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42550044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52496640).

42550044 is an abundant number, since it is smaller than the sum of its proper divisors (62443236).

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

42550044 is a wasteful number, since it uses less digits than its factorization.

42550044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 42550044 is about 6523.0394755819. The cubic root of 42550044 is about 349.1135226187.

Adding to 42550044 its reverse (44005524), we get a palindrome (86555568).

The spelling of 42550044 in words is "forty-two million, five hundred fifty thousand, forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 431 433 862 866 1293 1299 1724 1732 2586 2598 5172 5196 8189 8227 16378 16454 24567 24681 32756 32908 49134 49362 98268 98724 186623 373246 559869 746492 1119738 2239476 3545837 7091674 10637511 14183348 21275022 42550044