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42471044 = 22721119699
BaseRepresentation
bin1010001000000…
…0111010000100
32221220202022122
42202000322010
541333033134
64114145112
71023666200
oct242007204
987822278
1042471044
1121a79140
1212282198
138a504c5
1458d7b00
153ade02e
hex2880e84

42471044 has 36 divisors (see below), whose sum is σ = 94323600. Its totient is φ = 16546320.

The previous prime is 42471029. The next prime is 42471047. The reversal of 42471044 is 44017424.

It is not an unprimeable number, because it can be changed into a prime (42471047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7694 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (2620100).

Almost surely, 242471044 is an apocalyptic number.

42471044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42471044 is an abundant number, since it is smaller than the sum of its proper divisors (51852556).

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

42471044 is a wasteful number, since it uses less digits than its factorization.

42471044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19728 (or 19719 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 42471044 is about 6516.9812029804. The cubic root of 42471044 is about 348.8973297002.

Adding to 42471044 its reverse (44017424), we get a palindrome (86488468).

The spelling of 42471044 in words is "forty-two million, four hundred seventy-one thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 19699 39398 78796 137893 216689 275786 433378 551572 866756 965251 1516823 1930502 3033646 3861004 6067292 10617761 21235522 42471044