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120656672146 = 2972156328843
BaseRepresentation
bin111000001011110110…
…0101011010110010010
3102112102202211000100001
41300113230223112102
53434101102002041
6131232351120214
711500661535313
oct1602754532622
9375382730301
10120656672146
114719660067a
121b47381306a
13b4bb26627a
145ba864260a
15321296a131
hex1c17b2b592

120656672146 has 16 divisors (see below), whose sum is σ = 182865652704. Its totient is φ = 59701555584.

The previous prime is 120656672131. The next prime is 120656672239. The reversal of 120656672146 is 641276656021.

It is a junction number, because it is equal to n+sod(n) for n = 120656672096 and 120656672105.

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 7 ways as a sum of consecutive naturals, for example, 4168801 + ... + 4197643.

It is an arithmetic number, because the mean of its divisors is an integer number (11429103294).

Almost surely, 2120656672146 is an apocalyptic number.

120656672146 is a deficient number, since it is larger than the sum of its proper divisors (62208980558).

120656672146 is a wasteful number, since it uses less digits than its factorization.

120656672146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50505.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 120656672146 in words is "one hundred twenty billion, six hundred fifty-six million, six hundred seventy-two thousand, one hundred forty-six".

Divisors: 1 2 97 194 21563 28843 43126 57686 2091611 2797771 4183222 5595542 621941609 1243883218 60328336073 120656672146