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8121914342 = 29187442033
BaseRepresentation
bin1111001000001101…
…01001001111100110
3202222000210222221022
413210012221033212
5113113202224332
63421532451142
7405161063363
oct74406511746
922860728838
108121914342
113498677503
1216a8019ab2
139c588a499
1457096146a
1532807d212
hex1e41a93e6

8121914342 has 8 divisors (see below), whose sum is σ = 12184225176. Its totient is φ = 4060505952.

The previous prime is 8121914323. The next prime is 8121914371. The reversal of 8121914342 is 2434191218.

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

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 3 ways as a sum of consecutive naturals, for example, 202643 + ... + 239390.

It is an arithmetic number, because the mean of its divisors is an integer number (1523028147).

Almost surely, 28121914342 is an apocalyptic number.

8121914342 is a deficient number, since it is larger than the sum of its proper divisors (4062310834).

8121914342 is a wasteful number, since it uses less digits than its factorization.

8121914342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451222.

The product of its digits is 13824, while the sum is 35.

The square root of 8121914342 is about 90121.6641102460. The cubic root of 8121914342 is about 2010.1083530279.

The spelling of 8121914342 in words is "eight billion, one hundred twenty-one million, nine hundred fourteen thousand, three hundred forty-two".

Divisors: 1 2 9187 18374 442033 884066 4060957171 8121914342