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54140145211 = 232981169633
BaseRepresentation
bin110010011011000000…
…010000111000111011
312011202010020100011101
4302123000100320323
51341334334121321
640512135112231
73624433432645
oct623300207073
9164663210141
1054140145211
1120a62778469
12a5ab512677
13514a71c8a9
142898525895
15161d09e791
hexc9b010e3b

54140145211 has 8 divisors (see below), whose sum is σ = 58442136480. Its totient is φ = 50000493312.

The previous prime is 54140145203. The next prime is 54140145229. The reversal of 54140145211 is 11254104145.

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

It is a cyclic number.

It is not a de Polignac number, because 54140145211 - 23 = 54140145203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54140145211.

It is not an unprimeable number, because it can be changed into a prime (54140145811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40584150 + ... + 40585483.

It is an arithmetic number, because the mean of its divisors is an integer number (7305267060).

Almost surely, 254140145211 is an apocalyptic number.

54140145211 is a deficient number, since it is larger than the sum of its proper divisors (4301991269).

54140145211 is a wasteful number, since it uses less digits than its factorization.

54140145211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81169685.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 54140145211 its reverse (11254104145), we get a palindrome (65394249356).

The spelling of 54140145211 in words is "fifty-four billion, one hundred forty million, one hundred forty-five thousand, two hundred eleven".

Divisors: 1 23 29 667 81169633 1866901559 2353919357 54140145211