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53000028005 = 539892657309
BaseRepresentation
bin110001010111000011…
…000011111101100101
312001210122220101101012
4301113003003331211
51332021001344010
640203050312005
73554250543041
oct612703037545
9161718811335
1053000028005
1120528152541
12a331728605
134cc8463c22
1427cad43021
1515a2e42005
hexc570c3f65

53000028005 has 8 divisors (see below), whose sum is σ = 63616001400. Its totient is φ = 42389377216.

The previous prime is 53000027999. The next prime is 53000028023. The reversal of 53000028005 is 50082000035.

It can be written as a sum of positive squares in 4 ways, for example, as 1446509089 + 51553518916 = 38033^2 + 227054^2 .

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 53000028005 - 216 = 52999962469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308710 + ... + 1348599.

It is an arithmetic number, because the mean of its divisors is an integer number (7952000175).

Almost surely, 253000028005 is an apocalyptic number.

It is an amenable number.

53000028005 is a deficient number, since it is larger than the sum of its proper divisors (10615973395).

53000028005 is a wasteful number, since it uses less digits than its factorization.

53000028005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661303.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 53000028005 in words is "fifty-three billion, twenty-eight thousand, five".

Divisors: 1 5 3989 19945 2657309 13286545 10600005601 53000028005