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120303420 = 22352005057
BaseRepresentation
bin1110010101110…
…10111100111100
322101101001021020
413022322330330
5221244202140
615534304140
72660363556
oct712727474
9271331236
10120303420
11619a9816
1234358050
131bc02073
1411d984d6
15a8656d0
hex72baf3c

120303420 has 24 divisors (see below), whose sum is σ = 336849744. Its totient is φ = 32080896.

The previous prime is 120303401. The next prime is 120303431. The reversal of 120303420 is 24303021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120303420.

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 7 ways as a sum of consecutive naturals, for example, 1002469 + ... + 1002588.

It is an arithmetic number, because the mean of its divisors is an integer number (14035406).

Almost surely, 2120303420 is an apocalyptic number.

120303420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120303420 is an abundant number, since it is smaller than the sum of its proper divisors (216546324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120303420 is a wasteful number, since it uses less digits than its factorization.

120303420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005069 (or 2005067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 120303420 is about 10968.2915716168. The cubic root of 120303420 is about 493.6577861225.

Adding to 120303420 its reverse (24303021), we get a palindrome (144606441).

The spelling of 120303420 in words is "one hundred twenty million, three hundred three thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2005057 4010114 6015171 8020228 10025285 12030342 20050570 24060684 30075855 40101140 60151710 120303420