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120020430 = 2357275503
BaseRepresentation
bin1110010011101…
…01110111001110
322100211200002010
413021311313032
5221211123210
615524242050
72655104535
oct711656716
9270750063
10120020430
1161826142
1234240326
131bb3330a
1411d2331c
15a80b920
hex7275dce

120020430 has 32 divisors (see below), whose sum is σ = 288497664. Its totient is φ = 31955616.

The previous prime is 120020423. The next prime is 120020431. The reversal of 120020430 is 34020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020431) 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 15 ways as a sum of consecutive naturals, for example, 19059 + ... + 24561.

It is an arithmetic number, because the mean of its divisors is an integer number (9015552).

Almost surely, 2120020430 is an apocalyptic number.

120020430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120020430 is an abundant number, since it is smaller than the sum of its proper divisors (168477234).

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

120020430 is a wasteful number, since it uses less digits than its factorization.

120020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 120020430 is about 10955.3836080714. The cubic root of 120020430 is about 493.2704047848.

Adding to 120020430 its reverse (34020021), we get a palindrome (154040451).

The spelling of 120020430 in words is "one hundred twenty million, twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 727 1454 2181 3635 4362 5503 7270 10905 11006 16509 21810 27515 33018 55030 82545 165090 4000681 8001362 12002043 20003405 24004086 40006810 60010215 120020430