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120745212423 = 3113658945831
BaseRepresentation
bin111000001110011111…
…0011011101000000111
3102112122221102022202120
41300130332123220013
53434241233244143
6131245232541023
711503115241243
oct1603476335007
9375587368676
10120745212423
1147231585260
121b4993b1773
13b5036c6974
145bb62cd423
15321a609383
hex1c1cf9ba07

120745212423 has 8 divisors (see below), whose sum is σ = 175629399936. Its totient is φ = 73178916600.

The previous prime is 120745212391. The next prime is 120745212457. The reversal of 120745212423 is 324212547021.

It is a happy number.

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

It is not a de Polignac number, because 120745212423 - 25 = 120745212391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3658945831 = 120745212423 / (1 + 2 + 0 + 7 + 4 + 5 + 2 + 1 + 2 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120745212473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829472883 + ... + 1829472948.

It is an arithmetic number, because the mean of its divisors is an integer number (21953674992).

Almost surely, 2120745212423 is an apocalyptic number.

120745212423 is a deficient number, since it is larger than the sum of its proper divisors (54884187513).

120745212423 is a wasteful number, since it uses less digits than its factorization.

120745212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658945845.

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 120745212423 its reverse (324212547021), we get a palindrome (444957759444).

The spelling of 120745212423 in words is "one hundred twenty billion, seven hundred forty-five million, two hundred twelve thousand, four hundred twenty-three".

Divisors: 1 3 11 33 3658945831 10976837493 40248404141 120745212423