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54870449 = 496711047
BaseRepresentation
bin1101000101010…
…0000110110001
310211020201002212
43101110012301
5103021323244
65240021505
71234251104
oct321240661
9124221085
1054870449
1128a77a87
1216461895
13b4a222a
14740473b
154c3cd9e
hex34541b1

54870449 has 4 divisors (see below), whose sum is σ = 54886464. Its totient is φ = 54854436.

The previous prime is 54870443. The next prime is 54870463. The reversal of 54870449 is 94407845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54870449 - 216 = 54804913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54870443) 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, 557 + ... + 10490.

It is an arithmetic number, because the mean of its divisors is an integer number (13721616).

Almost surely, 254870449 is an apocalyptic number.

It is an amenable number.

54870449 is a deficient number, since it is larger than the sum of its proper divisors (16015).

54870449 is a wasteful number, since it uses less digits than its factorization.

54870449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16014.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 54870449 is about 7407.4590110240. The cubic root of 54870449 is about 379.9964196339.

The spelling of 54870449 in words is "fifty-four million, eight hundred seventy thousand, four hundred forty-nine".

Divisors: 1 4967 11047 54870449