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120147423 = 31123592683
BaseRepresentation
bin1110010100101…
…00110111011111
322101002010021120
413022110313133
5221224204143
615531102023
72656144014
oct712246737
9271063246
10120147423
11619025a0
12342a1913
131bb79066
1411d5770b
15a834383
hex7294ddf

120147423 has 32 divisors (see below), whose sum is σ = 185518080. Its totient is φ = 68444640.

The previous prime is 120147421. The next prime is 120147427. The reversal of 120147423 is 324741021.

It is a happy number.

It is not a de Polignac number, because 120147423 - 21 = 120147421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120147393 and 120147402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120147421) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 43440 + ... + 46122.

It is an arithmetic number, because the mean of its divisors is an integer number (5797440).

Almost surely, 2120147423 is an apocalyptic number.

120147423 is a deficient number, since it is larger than the sum of its proper divisors (65370657).

120147423 is a wasteful number, since it uses less digits than its factorization.

120147423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 120147423 is about 10961.1779932633. The cubic root of 120147423 is about 493.4443190864. Note that the first 3 decimals are identical.

Adding to 120147423 its reverse (324741021), we get a palindrome (444888444).

The spelling of 120147423 in words is "one hundred twenty million, one hundred forty-seven thousand, four hundred twenty-three".

Divisors: 1 3 11 23 33 59 69 177 253 649 759 1357 1947 2683 4071 8049 14927 29513 44781 61709 88539 158297 185127 474891 678799 1741267 2036397 3640831 5223801 10922493 40049141 120147423