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54930005 = 5131097753
BaseRepresentation
bin1101000110001…
…0101001010101
310211100201210122
43101202221111
5103030230010
65241201325
71234616534
oct321425125
9124321718
1054930005
11290087a9
1216490245
13b4c3380
14741c31b
154c50855
hex3462a55

54930005 has 16 divisors (see below), whose sum is σ = 71646960. Its totient is φ = 40186368.

The previous prime is 54929993. The next prime is 54930019. The reversal of 54930005 is 50003945.

It can be written as a sum of positive squares in 8 ways, for example, as 2033476 + 52896529 = 1426^2 + 7273^2 .

It is a cyclic number.

It is not a de Polignac number, because 54930005 - 224 = 38152789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3209 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (4477935).

Almost surely, 254930005 is an apocalyptic number.

It is an amenable number.

54930005 is a deficient number, since it is larger than the sum of its proper divisors (16716955).

54930005 is a wasteful number, since it uses less digits than its factorization.

54930005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7880.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 54930005 is about 7411.4779227898. The cubic root of 54930005 is about 380.1338517383.

The spelling of 54930005 in words is "fifty-four million, nine hundred thirty thousand, five".

Divisors: 1 5 13 65 109 545 1417 7085 7753 38765 100789 503945 845077 4225385 10986001 54930005