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54945920 = 27585853
BaseRepresentation
bin1101000110011…
…0100010000000
310211101112122002
43101212202000
5103031232140
65241403132
71235014121
oct321464200
9124345562
1054945920
1129019757
12164994a8
13b4ca6a3
147424048
154c55415
hex3466880

54945920 has 32 divisors (see below), whose sum is σ = 131356620. Its totient is φ = 21978112.

The previous prime is 54945901. The next prime is 54945937. The reversal of 54945920 is 2954945.

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 5271616 = 7048^2 + 2296^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42287 + ... + 43566.

Almost surely, 254945920 is an apocalyptic number.

It is an amenable number.

54945920 is an abundant number, since it is smaller than the sum of its proper divisors (76410700).

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

54945920 is an equidigital number, since it uses as much as digits as its factorization.

54945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85872 (or 85860 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 54945920 is about 7412.5515175276. The cubic root of 54945920 is about 380.1705605527.

The spelling of 54945920 in words is "fifty-four million, nine hundred forty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 85853 171706 343412 429265 686824 858530 1373648 1717060 2747296 3434120 5494592 6868240 10989184 13736480 27472960 54945920