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1912965055 = 51097348763
BaseRepresentation
bin111001000000101…
…1000011110111111
311221022120200201121
41302001120132333
512404204340210
6513453251411
765255635411
oct16201303677
94838520647
101912965055
118a1900a61
12454793b67
13246422bb1
141420c09b1
15b2e1e6da
hex720587bf

1912965055 has 8 divisors (see below), whose sum is σ = 2297657232. Its totient is φ = 1528972608.

The previous prime is 1912965017. The next prime is 1912965133. The reversal of 1912965055 is 5505692191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1912965055 - 213 = 1912956863 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 168897 + ... + 179866.

It is an arithmetic number, because the mean of its divisors is an integer number (287207154).

Almost surely, 21912965055 is an apocalyptic number.

1912965055 is a deficient number, since it is larger than the sum of its proper divisors (384692177).

1912965055 is a wasteful number, since it uses less digits than its factorization.

1912965055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349865.

The product of its (nonzero) digits is 121500, while the sum is 43.

The square root of 1912965055 is about 43737.4559731130. The cubic root of 1912965055 is about 1241.3731439171.

The spelling of 1912965055 in words is "one billion, nine hundred twelve million, nine hundred sixty-five thousand, fifty-five".

Divisors: 1 5 1097 5485 348763 1743815 382593011 1912965055