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48287920 = 2451494051
BaseRepresentation
bin1011100000110…
…1000010110000
310100212021120111
42320031002300
544330203140
64442551104
71124304052
oct270150260
9110767514
1048287920
112529147a
1214208494
13a009045
1465ad8d2
15438c7ea
hex2e0d0b0

48287920 has 40 divisors (see below), whose sum is σ = 113050800. Its totient is φ = 19180800.

The previous prime is 48287917. The next prime is 48287927. The reversal of 48287920 is 2978284.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (48287927) 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, 9895 + ... + 13945.

It is an arithmetic number, because the mean of its divisors is an integer number (2826270).

Almost surely, 248287920 is an apocalyptic number.

48287920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48287920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56525400).

48287920 is an abundant number, since it is smaller than the sum of its proper divisors (64762880).

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

48287920 is a wasteful number, since it uses less digits than its factorization.

48287920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213 (or 4207 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 48287920 is about 6948.9509999711. The cubic root of 48287920 is about 364.1493168346.

The spelling of 48287920 in words is "forty-eight million, two hundred eighty-seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 149 298 596 745 1192 1490 2384 2980 4051 5960 8102 11920 16204 20255 32408 40510 64816 81020 162040 324080 603599 1207198 2414396 3017995 4828792 6035990 9657584 12071980 24143960 48287920