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514681234889 = 1980125992689
BaseRepresentation
bin1110111110101010110…
…01000110010111001001
31211012111000112201101212
413133111121012113021
531413031344004024
61032235153022505
752120165212413
oct7372531062711
91735430481355
10514681234889
11189303159578
12838b9854a35
13396c3928a03
141aca6d8b9b3
15d5c497da0e
hex77d56465c9

514681234889 has 4 divisors (see below), whose sum is σ = 514707247380. Its totient is φ = 514655222400.

The previous prime is 514681234861. The next prime is 514681234909. The reversal of 514681234889 is 988432186415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988432186415 = 5197686437283.

It can be written as a sum of positive squares in 2 ways, for example, as 57559207225 + 457122027664 = 239915^2 + 676108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-514681234889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (514681233889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12976544 + ... + 13016145.

It is an arithmetic number, because the mean of its divisors is an integer number (128676811845).

Almost surely, 2514681234889 is an apocalyptic number.

It is an amenable number.

514681234889 is a deficient number, since it is larger than the sum of its proper divisors (26012491).

514681234889 is a wasteful number, since it uses less digits than its factorization.

514681234889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26012490.

The product of its digits is 13271040, while the sum is 59.

The spelling of 514681234889 in words is "five hundred fourteen billion, six hundred eighty-one million, two hundred thirty-four thousand, eight hundred eighty-nine".

Divisors: 1 19801 25992689 514681234889