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54020510405 = 5100991069819
BaseRepresentation
bin110010010011110111…
…111001001011000101
312011102210010021001122
4302103313321023011
51341113222313110
640452223003325
73621451522301
oct622367711305
9164383107048
1054020510405
1120a01196024
12a577439545
13512b9c2c74
1428866a2d01
15161281c255
hexc93df92c5

54020510405 has 8 divisors (see below), whose sum is σ = 64831092000. Its totient is φ = 43212088656.

The previous prime is 54020510393. The next prime is 54020510431. The reversal of 54020510405 is 50401502045.

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

It is a cyclic number.

It is not a de Polignac number, because 54020510405 - 28 = 54020510149 is a prime.

It is a super-4 number, since 4×540205104054 (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484415 + ... + 585404.

It is an arithmetic number, because the mean of its divisors is an integer number (8103886500).

Almost surely, 254020510405 is an apocalyptic number.

It is an amenable number.

54020510405 is a deficient number, since it is larger than the sum of its proper divisors (10810581595).

54020510405 is a wasteful number, since it uses less digits than its factorization.

54020510405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079923.

The product of its (nonzero) digits is 4000, while the sum is 26.

The spelling of 54020510405 in words is "fifty-four billion, twenty million, five hundred ten thousand, four hundred five".

Divisors: 1 5 10099 50495 1069819 5349095 10804102081 54020510405