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48489440 = 2551717827
BaseRepresentation
bin1011100011111…
…0001111100000
310101020112000012
42320332033200
544403130230
64451144052
71126103426
oct270761740
9111215005
1048489440
112540991a
12142a5028
13a07999c
146623116
1543cc395
hex2e3e3e0

48489440 has 48 divisors (see below), whose sum is σ = 121301712. Its totient is φ = 18253824.

The previous prime is 48489439. The next prime is 48489443. The reversal of 48489440 is 4498484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48489443) 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, 6194 + ... + 11633.

It is an arithmetic number, because the mean of its divisors is an integer number (2527119).

Almost surely, 248489440 is an apocalyptic number.

48489440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48489440 is an abundant number, since it is smaller than the sum of its proper divisors (72812272).

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

48489440 is a wasteful number, since it uses less digits than its factorization.

48489440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17859 (or 17851 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 48489440 is about 6963.4359335029. The cubic root of 48489440 is about 364.6551819505.

The spelling of 48489440 in words is "forty-eight million, four hundred eighty-nine thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 340 544 680 1360 2720 17827 35654 71308 89135 142616 178270 285232 303059 356540 570464 606118 713080 1212236 1426160 1515295 2424472 2852320 3030590 4848944 6061180 9697888 12122360 24244720 48489440