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54871880 = 2357195971
BaseRepresentation
bin1101000101010…
…0011101001000
310211020210001212
43101110131020
5103021400010
65240032252
71234255220
oct321243510
9124223055
1054871880
1128a79068
1216462688
13b4a2a8b
147405080
154c3d505
hex3454748

54871880 has 32 divisors (see below), whose sum is σ = 141099840. Its totient is φ = 18813120.

The previous prime is 54871819. The next prime is 54871897. The reversal of 54871880 is 8817845.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97706 + ... + 98265.

It is an arithmetic number, because the mean of its divisors is an integer number (4409370).

Almost surely, 254871880 is an apocalyptic number.

It is an amenable number.

54871880 is an abundant number, since it is smaller than the sum of its proper divisors (86227960).

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

54871880 is a wasteful number, since it uses less digits than its factorization.

54871880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195989 (or 195985 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 54871880 is about 7407.5556022213. Note that the first 3 decimals coincide. The cubic root of 54871880 is about 379.9997229915. Note that the first 3 decimals are identical.

The spelling of 54871880 in words is "fifty-four million, eight hundred seventy-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 195971 391942 783884 979855 1371797 1567768 1959710 2743594 3919420 5487188 6858985 7838840 10974376 13717970 27435940 54871880