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122120209983 = 3241168907621
BaseRepresentation
bin111000110111011101…
…1101000011000111111
3102200012202201102211010
41301232323220120333
54000100233204413
6132033511530303
711552152441422
oct1615673503077
9380182642733
10122120209983
1147877747282
121b801989993
13b6925300a5
145ca6b739b9
15329b1b0dc3
hex1c6eee863f

122120209983 has 8 divisors (see below), whose sum is σ = 163502578096. Its totient is φ = 81075657600.

The previous prime is 122120209963. The next prime is 122120210053. The reversal of 122120209983 is 389902021221.

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

It is a de Polignac number, because none of the positive numbers 2k-122120209983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120209963) 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 7 ways as a sum of consecutive naturals, for example, 84453088 + ... + 84454533.

It is an arithmetic number, because the mean of its divisors is an integer number (20437822262).

Almost surely, 2122120209983 is an apocalyptic number.

122120209983 is a deficient number, since it is larger than the sum of its proper divisors (41382368113).

122120209983 is a wasteful number, since it uses less digits than its factorization.

122120209983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168907865.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 122120209983 in words is "one hundred twenty-two billion, one hundred twenty million, two hundred nine thousand, nine hundred eighty-three".

Divisors: 1 3 241 723 168907621 506722863 40706736661 122120209983