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54869085 = 3251219313
BaseRepresentation
bin1101000101001…
…1110001011101
310211020122020100
43101103301131
5103021302320
65240011313
71234244115
oct321236135
9124218210
1054869085
1128a76a57
1216460b39
13b4a171b
147404045
154c3c790
hex3453c5d

54869085 has 12 divisors (see below), whose sum is σ = 95106492. Its totient is φ = 29263488.

The previous prime is 54869077. The next prime is 54869107. The reversal of 54869085 is 58096845.

54869085 is a `hidden beast` number, since 5 + 486 + 90 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41757444 + 13111641 = 6462^2 + 3621^2 .

It is not a de Polignac number, because 54869085 - 23 = 54869077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1219313 = 54869085 / (5 + 4 + 8 + 6 + 9 + 0 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 54869085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609612 + ... + 609701.

It is an arithmetic number, because the mean of its divisors is an integer number (7925541).

Almost surely, 254869085 is an apocalyptic number.

It is an amenable number.

54869085 is a deficient number, since it is larger than the sum of its proper divisors (40237407).

54869085 is a wasteful number, since it uses less digits than its factorization.

54869085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219324 (or 1219321 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 54869085 is about 7407.3669410932. The cubic root of 54869085 is about 379.9932708873.

The spelling of 54869085 in words is "fifty-four million, eight hundred sixty-nine thousand, eighty-five".

Divisors: 1 3 5 9 15 45 1219313 3657939 6096565 10973817 18289695 54869085