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54115130161565 = 5112362497684493
BaseRepresentation
bin11000100110111101010010…
…00111000011100110011101
321002121100121110120011002222
430103132221013003212131
524043110241310132230
6311032051514155125
714253455241565034
oct1423365107034635
9232540543504088
1054115130161565
111627410921a110
12609ba5b722aa5
13242705b81b365
14d512871d171b
1563c9d32ca6e5
hex3137a91c399d

54115130161565 has 32 divisors (see below), whose sum is σ = 73922986388736. Its totient is φ = 37644650588160.

The previous prime is 54115130161493. The next prime is 54115130161583. The reversal of 54115130161565 is 56516103151145.

It is not a de Polignac number, because 54115130161565 - 210 = 54115130160541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78716459 + ... + 79400951.

It is an arithmetic number, because the mean of its divisors is an integer number (2310093324648).

Almost surely, 254115130161565 is an apocalyptic number.

54115130161565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54115130161565 is a deficient number, since it is larger than the sum of its proper divisors (19807856227171).

54115130161565 is a wasteful number, since it uses less digits than its factorization.

54115130161565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747029.

The product of its (nonzero) digits is 270000, while the sum is 44.

The spelling of 54115130161565 in words is "fifty-four trillion, one hundred fifteen billion, one hundred thirty million, one hundred sixty-one thousand, five hundred sixty-five".

Divisors: 1 5 11 23 55 115 253 1265 62497 312485 684493 687467 1437431 3422465 3437335 7187155 7529423 15743339 15811741 37647115 78716695 79058705 173176729 865883645 42778759021 213893795105 470566349231 983911457483 2352831746155 4919557287415 10823026032313 54115130161565