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54280940 = 2257387721
BaseRepresentation
bin1100111100010…
…0001011101100
310210010202110012
43033010023230
5102343442230
65215232352
71226244320
oct317041354
9123122405
1054280940
112870508a
12162186b8
13b326acc
1472cd980
154b73395
hex33c42ec

54280940 has 24 divisors (see below), whose sum is σ = 130274592. Its totient is φ = 18610560.

The previous prime is 54280937. The next prime is 54280951. The reversal of 54280940 is 4908245.

54280940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 54280897 and 54280906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193721 + ... + 194000.

It is an arithmetic number, because the mean of its divisors is an integer number (5428108).

Almost surely, 254280940 is an apocalyptic number.

It is an amenable number.

54280940 is an abundant number, since it is smaller than the sum of its proper divisors (75993652).

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

54280940 is a wasteful number, since it uses less digits than its factorization.

54280940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387737 (or 387735 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 54280940 is about 7367.5599760029. The cubic root of 54280940 is about 378.6306670933.

The spelling of 54280940 in words is "fifty-four million, two hundred eighty thousand, nine hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 387721 775442 1550884 1938605 2714047 3877210 5428094 7754420 10856188 13570235 27140470 54280940