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29972049819 = 361281582853
BaseRepresentation
bin11011111010011110…
…010010111110011011
32212100210200212221020
4123322132102332123
5442340321043234
621434033013523
72110510135305
oct337236227633
985323625836
1029972049819
1111790493708
1259856b42a3
132a9865a12a
141644850975
15ba6457549
hex6fa792f9b

29972049819 has 16 divisors (see below), whose sum is σ = 40762477344. Its totient is φ = 19583827200.

The previous prime is 29972049803. The next prime is 29972049841. The reversal of 29972049819 is 91894027992.

It is not a de Polignac number, because 29972049819 - 24 = 29972049803 is a prime.

It is a super-3 number, since 3×299720498193 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (29972042819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240004 + ... + 342849.

It is an arithmetic number, because the mean of its divisors is an integer number (2547654834).

Almost surely, 229972049819 is an apocalyptic number.

29972049819 is a deficient number, since it is larger than the sum of its proper divisors (10790427525).

29972049819 is a wasteful number, since it uses less digits than its factorization.

29972049819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583198.

The product of its (nonzero) digits is 5878656, while the sum is 60.

The spelling of 29972049819 in words is "twenty-nine billion, nine hundred seventy-two million, forty-nine thousand, eight hundred nineteen".

Divisors: 1 3 61 183 281 843 17141 51423 582853 1748559 35554033 106662099 163781693 491345079 9990683273 29972049819