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53012620543461 = 3172927490372431
BaseRepresentation
bin11000000110110111101100…
…11010101000010111100101
320221200221211200012120112120
430003123312122220113211
523422024321324342321
6304425354530540153
714111015104502445
oct1403336632502745
9227627750176476
1053012620543461
1115989587295977
125b4224b437659
1323770b7b26b77
14d13b786d2125
1561dea734dec6
hex3036f66a85e5

53012620543461 has 32 divisors (see below), whose sum is σ = 74883219406848. Its totient is φ = 33244215755520.

The previous prime is 53012620543459. The next prime is 53012620543583. The reversal of 53012620543461 is 16434502621035.

It is not a de Polignac number, because 53012620543461 - 21 = 53012620543459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53012620543261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 731868916 + ... + 731941346.

It is an arithmetic number, because the mean of its divisors is an integer number (2340100606464).

Almost surely, 253012620543461 is an apocalyptic number.

53012620543461 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

53012620543461 is a deficient number, since it is larger than the sum of its proper divisors (21870598863387).

53012620543461 is a wasteful number, since it uses less digits than its factorization.

53012620543461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80281.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 53012620543461 in words is "fifty-three trillion, twelve billion, six hundred twenty million, five hundred forty-three thousand, four hundred sixty-one".

Divisors: 1 3 17 51 2927 4903 8781 14709 49759 72431 83351 149277 217293 250053 1231327 3693981 14351081 43053243 212005537 243968377 355129193 636016611 731905131 1065387579 3604094129 6037196281 10812282387 18111588843 1039463147911 3118389443733 17670873514487 53012620543461