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54809313 = 3131405367
BaseRepresentation
bin1101000100010…
…1001011100001
310211010121020120
43101011023201
5103012344223
65234430453
71233604626
oct321051341
9124117216
1054809313
1128a36059
1216432429
13b480460
1473ca34d
154c29be3
hex34452e1

54809313 has 8 divisors (see below), whose sum is σ = 78700608. Its totient is φ = 33728784.

The previous prime is 54809303. The next prime is 54809317. The reversal of 54809313 is 31390845.

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

It is not a de Polignac number, because 54809313 - 222 = 50615009 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54809317) 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 7 ways as a sum of consecutive naturals, for example, 702645 + ... + 702722.

It is an arithmetic number, because the mean of its divisors is an integer number (9837576).

Almost surely, 254809313 is an apocalyptic number.

It is an amenable number.

54809313 is a deficient number, since it is larger than the sum of its proper divisors (23891295).

54809313 is a wasteful number, since it uses less digits than its factorization.

54809313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405383.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 54809313 is about 7403.3312096650. The cubic root of 54809313 is about 379.8552380267.

The spelling of 54809313 in words is "fifty-four million, eight hundred nine thousand, three hundred thirteen".

Divisors: 1 3 13 39 1405367 4216101 18269771 54809313