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49989206534399 = 1117242719368099
BaseRepresentation
bin10110101110111000001001…
…11001011110100011111111
320112222220212202100101211122
423113130010321132203333
523023010343333100044
6254152420251541155
713346413065446306
oct1327340471364377
9215886782311748
1049989206534399
1114a23337966690
1257342b015a7bb
1321b7c6752cc42
14c4b6c1d3b43d
155ba5022badee
hex2d7704e5e8ff

49989206534399 has 24 divisors (see below), whose sum is σ = 57931754688000. Its totient is φ = 42770396190080.

The previous prime is 49989206534353. The next prime is 49989206534419. The reversal of 49989206534399 is 99343560298994.

It is not a de Polignac number, because 49989206534399 - 28 = 49989206534143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49989206534699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135619652 + ... + 135987750.

It is an arithmetic number, because the mean of its divisors is an integer number (2413823112000).

Almost surely, 249989206534399 is an apocalyptic number.

49989206534399 is a deficient number, since it is larger than the sum of its proper divisors (7942548153601).

49989206534399 is a wasteful number, since it uses less digits than its factorization.

49989206534399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410863 (or 410846 counting only the distinct ones).

The product of its (nonzero) digits is 4081466880, while the sum is 80.

The spelling of 49989206534399 in words is "forty-nine trillion, nine hundred eighty-nine billion, two hundred six million, five hundred thirty-four thousand, three hundred ninety-nine".

Divisors: 1 11 17 187 289 3179 42719 368099 469909 726223 4049089 6257683 7988453 12345791 68834513 106380611 135803701 1170186721 15724821181 172973032991 267321960077 2940541560847 4544473321309 49989206534399