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54042890 = 2511491299
BaseRepresentation
bin1100111000101…
…0000100001010
310202200122220112
43032022010022
5102313333030
65210154322
71224233306
oct316120412
9122618815
1054042890
1128562250
12161229a2
13b272655
14726ad06
154b27a95
hex338a10a

54042890 has 16 divisors (see below), whose sum is σ = 106120800. Its totient is φ = 19651920.

The previous prime is 54042887. The next prime is 54042917. The reversal of 54042890 is 9824045.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245540 + ... + 245759.

It is an arithmetic number, because the mean of its divisors is an integer number (6632550).

Almost surely, 254042890 is an apocalyptic number.

54042890 is a deficient number, since it is larger than the sum of its proper divisors (52077910).

54042890 is a wasteful number, since it uses less digits than its factorization.

54042890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491317.

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

The square root of 54042890 is about 7351.3869439719. The cubic root of 54042890 is about 378.0763588822.

The spelling of 54042890 in words is "fifty-four million, forty-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 491299 982598 2456495 4912990 5404289 10808578 27021445 54042890