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54887800 = 23521161409
BaseRepresentation
bin1101000101100…
…0010101111000
310211021120220111
43101120111320
5103022402200
65240234104
71234352512
oct321302570
9124246814
1054887800
1128a8a020
121646b934
13b4aa0b6
14740abb2
154c430ba
hex3458578

54887800 has 96 divisors (see below), whose sum is σ = 141843600. Its totient is φ = 19584000.

The previous prime is 54887797. The next prime is 54887801. The reversal of 54887800 is 878845.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54887801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133996 + ... + 134404.

Almost surely, 254887800 is an apocalyptic number.

54887800 is a gapful number since it is divisible by the number (50) 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 54887800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70921800).

54887800 is an abundant number, since it is smaller than the sum of its proper divisors (86955800).

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

54887800 is a wasteful number, since it uses less digits than its factorization.

54887800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 54887800 is about 7408.6301027923. The cubic root of 54887800 is about 380.0364692607.

The spelling of 54887800 in words is "fifty-four million, eight hundred eighty-seven thousand, eight hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 61 88 100 110 122 200 220 244 275 305 409 440 488 550 610 671 818 1100 1220 1342 1525 1636 2045 2200 2440 2684 3050 3272 3355 4090 4499 5368 6100 6710 8180 8998 10225 12200 13420 16360 16775 17996 20450 22495 24949 26840 33550 35992 40900 44990 49898 67100 81800 89980 99796 112475 124745 134200 179960 199592 224950 249490 274439 449900 498980 548878 623725 899800 997960 1097756 1247450 1372195 2195512 2494900 2744390 4989800 5488780 6860975 10977560 13721950 27443900 54887800