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191045129000 = 23531117367739
BaseRepresentation
bin1011000111101100101…
…1010101001100101000
3200021010021010002211112
42301323023111030220
511112230023112000
6223433120045452
716542163542245
oct2617313251450
9607107102745
10191045129000
1174026aa4070
1231038763888
131502801013b
149364a965cc
154e8220e235
hex2c7b2d5328

191045129000 has 64 divisors (see below), whose sum is σ = 487686139200. Its totient is φ = 69470952000.

The previous prime is 191045128999. The next prime is 191045129027. The reversal of 191045129000 is 921540191.

191045129000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8672870 + ... + 8694869.

It is an arithmetic number, because the mean of its divisors is an integer number (7620095925).

Almost surely, 2191045129000 is an apocalyptic number.

191045129000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191045129000 is an abundant number, since it is smaller than the sum of its proper divisors (296641010200).

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

191045129000 is a wasteful number, since it uses less digits than its factorization.

191045129000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17367771 (or 17367757 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

Adding to 191045129000 its reverse (921540191), we get a palindrome (191966669191).

The spelling of 191045129000 in words is "one hundred ninety-one billion, forty-five million, one hundred twenty-nine thousand".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 125 200 220 250 275 440 500 550 1000 1100 1375 2200 2750 5500 11000 17367739 34735478 69470956 86838695 138941912 173677390 191045129 347354780 382090258 434193475 694709560 764180516 868386950 955225645 1528361032 1736773900 1910451290 2170967375 3473547800 3820902580 4341934750 4776128225 7641805160 8683869500 9552256450 17367739000 19104512900 23880641125 38209025800 47761282250 95522564500 191045129000