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54987530 = 2513232537
BaseRepresentation
bin1101000111000…
…0101100001010
310211110122201012
43101300230022
5103034100110
65242323522
71235246333
oct321605412
9124418635
1054987530
1129047a44
12164b95a2
13b513600
14743528a
154c62905
hex3470b0a

54987530 has 24 divisors (see below), whose sum is σ = 107180172. Its totient is φ = 20302464.

The previous prime is 54987529. The next prime is 54987533. The reversal of 54987530 is 3578945.

It can be written as a sum of positive squares in 6 ways, for example, as 94249 + 54893281 = 307^2 + 7409^2 .

It is not an unprimeable number, because it can be changed into a prime (54987533) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14579 + ... + 17958.

Almost surely, 254987530 is an apocalyptic number.

54987530 is a deficient number, since it is larger than the sum of its proper divisors (52192642).

54987530 is a wasteful number, since it uses less digits than its factorization.

54987530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32570 (or 32557 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 54987530 is about 7415.3577122078. The cubic root of 54987530 is about 380.2665028024.

The spelling of 54987530 in words is "fifty-four million, nine hundred eighty-seven thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 169 338 845 1690 32537 65074 162685 325370 422981 845962 2114905 4229810 5498753 10997506 27493765 54987530