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540120385 = 5732313693
BaseRepresentation
bin100000001100011…
…001010101000001
31101122022221212201
4200030121111001
52101232323020
6125332353201
716245643000
oct4014312501
91348287781
10540120385
1125797a492
12130a75801
1387b9167c
1451a3ac37
1532640a0a
hex20319541

540120385 has 32 divisors (see below), whose sum is σ = 788774400. Its totient is φ = 354239424.

The previous prime is 540120367. The next prime is 540120401. The reversal of 540120385 is 583021045.

It is not a de Polignac number, because 540120385 - 219 = 539596097 is a prime.

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, 32599 + ... + 46291.

It is an arithmetic number, because the mean of its divisors is an integer number (24649200).

Almost surely, 2540120385 is an apocalyptic number.

It is an amenable number.

540120385 is a deficient number, since it is larger than the sum of its proper divisors (248654015).

540120385 is a wasteful number, since it uses less digits than its factorization.

540120385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742 (or 13728 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 540120385 is about 23240.4902056734. The cubic root of 540120385 is about 814.3857944015.

The spelling of 540120385 in words is "five hundred forty million, one hundred twenty thousand, three hundred eighty-five".

Divisors: 1 5 7 23 35 49 115 161 245 343 805 1127 1715 5635 7889 13693 39445 68465 95851 314939 479255 670957 1574695 2204573 3354785 4696699 11022865 15432011 23483495 77160055 108024077 540120385