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54870918 = 239145153
BaseRepresentation
bin1101000101010…
…0001110000110
310211020201202020
43101110032012
5103021332133
65240024010
71234252344
oct321241606
9124221666
1054870918
1128a78373
1216462006
13b4a24cb
147404994
154c3d0b3
hex3454386

54870918 has 8 divisors (see below), whose sum is σ = 109741848. Its totient is φ = 18290304.

The previous prime is 54870913. The next prime is 54870971. The reversal of 54870918 is 81907845.

It is a sphenic number, since it is the product of 3 distinct primes.

54870918 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54870918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54870913) 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 3 ways as a sum of consecutive naturals, for example, 4572571 + ... + 4572582.

It is an arithmetic number, because the mean of its divisors is an integer number (13717731).

Almost surely, 254870918 is an apocalyptic number.

54870918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54870918 is a wasteful number, since it uses less digits than its factorization.

54870918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9145158.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 54870918 is about 7407.4906682358. The cubic root of 54870918 is about 379.9975022920.

The spelling of 54870918 in words is "fifty-four million, eight hundred seventy thousand, nine hundred eighteen".

Divisors: 1 2 3 6 9145153 18290306 27435459 54870918