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54158480 = 245676981
BaseRepresentation
bin1100111010011…
…0010010010000
310202220112110122
43032212102100
5102331032410
65212445412
71225224305
oct316462220
9122815418
1054158480
1128631082
1216179868
13b2b314c
14729b0ac
154b4be55
hex33a6490

54158480 has 20 divisors (see below), whose sum is σ = 125918652. Its totient is φ = 21663360.

The previous prime is 54158479. The next prime is 54158483. The reversal of 54158480 is 8485145.

It can be written as a sum of positive squares in 2 ways, for example, as 34480384 + 19678096 = 5872^2 + 4436^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 54158480.

It is not an unprimeable number, because it can be changed into a prime (54158483) 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, 338411 + ... + 338570.

Almost surely, 254158480 is an apocalyptic number.

It is an amenable number.

54158480 is an abundant number, since it is smaller than the sum of its proper divisors (71760172).

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

54158480 is a wasteful number, since it uses less digits than its factorization.

54158480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676994 (or 676988 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 54158480 is about 7359.2445264443. The cubic root of 54158480 is about 378.3457173242.

The spelling of 54158480 in words is "fifty-four million, one hundred fifty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 676981 1353962 2707924 3384905 5415848 6769810 10831696 13539620 27079240 54158480