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53660504745 = 3254327731527
BaseRepresentation
bin110001111110011010…
…100101001010101001
312010111200201002010200
4301332122211022221
51334344042122440
640352402502413
73606520523151
oct617632451251
9163450632120
1053660504745
1120836a57491
12a496964a09
1350a2245773
14285094d761
1515e0e08c30
hexc7e6a52a9

53660504745 has 24 divisors (see below), whose sum is σ = 95174604096. Its totient is φ = 27953378208.

The previous prime is 53660504719. The next prime is 53660504801. The reversal of 53660504745 is 54740506635.

53660504745 is a `hidden beast` number, since 5 + 36 + 605 + 0 + 4 + 7 + 4 + 5 = 666.

53660504745 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53660504745 - 27 = 53660504617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

53660504745 is strictly pandigital in base 11.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53660504745.

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 23 ways as a sum of consecutive naturals, for example, 13863829 + ... + 13867698.

It is an arithmetic number, because the mean of its divisors is an integer number (3965608504).

Almost surely, 253660504745 is an apocalyptic number.

It is an amenable number.

53660504745 is a deficient number, since it is larger than the sum of its proper divisors (41514099351).

53660504745 is a wasteful number, since it uses less digits than its factorization.

53660504745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27731581 (or 27731578 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 53660504745 in words is "fifty-three billion, six hundred sixty million, five hundred four thousand, seven hundred forty-five".

Divisors: 1 3 5 9 15 43 45 129 215 387 645 1935 27731527 83194581 138657635 249583743 415972905 1192455661 1247918715 3577366983 5962278305 10732100949 17886834915 53660504745