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540817963 = 779977971
BaseRepresentation
bin100000001111000…
…011101000101011
31101200122101202221
4200033003220223
52101422133323
6125355334511
716254606520
oct4017035053
91350571687
10540817963
112583065a4
12131151437
138807703a
1451b7d147
153272c55d
hex203c3a2b

540817963 has 8 divisors (see below), whose sum is σ = 625902080. Its totient is φ = 457689960.

The previous prime is 540817951. The next prime is 540817967. The reversal of 540817963 is 369718045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540817963 - 29 = 540817451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540817967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488433 + ... + 489538.

It is an arithmetic number, because the mean of its divisors is an integer number (78237760).

Almost surely, 2540817963 is an apocalyptic number.

540817963 is a deficient number, since it is larger than the sum of its proper divisors (85084117).

540817963 is an equidigital number, since it uses as much as digits as its factorization.

540817963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978057.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 540817963 is about 23255.4931790319. The cubic root of 540817963 is about 814.7362429524.

The spelling of 540817963 in words is "five hundred forty million, eight hundred seventeen thousand, nine hundred sixty-three".

Divisors: 1 7 79 553 977971 6845797 77259709 540817963