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53998391250 = 232544799857
BaseRepresentation
bin110010010010100011…
…100000111111010010
312011101020111111021200
4302102203200333102
51341042042010000
640450112532030
73621062516046
oct622243407722
9164336444250
1053998391250
112099a758631
12a56bb51016
13512724a0cb
142883786026
1516108ed500
hexc928e0fd2

53998391250 has 60 divisors (see below), whose sum is σ = 146198874822. Its totient is φ = 14399568000.

The previous prime is 53998391203. The next prime is 53998391261. The reversal of 53998391250 is 5219389935.

53998391250 is a `hidden beast` number, since 539 + 9 + 83 + 9 + 1 + 25 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 5042846169 + 48955545081 = 71013^2 + 221259^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2388679 + ... + 2411178.

Almost surely, 253998391250 is an apocalyptic number.

53998391250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53998391250 is an abundant number, since it is smaller than the sum of its proper divisors (92200483572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53998391250 is a wasteful number, since it uses less digits than its factorization.

53998391250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799885 (or 4799867 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 53998391250 in words is "fifty-three billion, nine hundred ninety-eight million, three hundred ninety-one thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 125 150 225 250 375 450 625 750 1125 1250 1875 2250 3750 5625 11250 4799857 9599714 14399571 23999285 28799142 43198713 47998570 71997855 86397426 119996425 143995710 215993565 239992850 359989275 431987130 599982125 719978550 1079967825 1199964250 1799946375 2159935650 2999910625 3599892750 5399839125 5999821250 8999731875 10799678250 17999463750 26999195625 53998391250