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120420303430 = 2572533967891
BaseRepresentation
bin111000000100110011…
…1000000001001000110
3102111211022001020102011
41300021213000021012
53433110044202210
6131153105004434
711462061455560
oct1601147001106
9374738036364
10120420303430
1147085138329
121b40862371a
13b4812b721b
145b850b4330
1531ebd29d8a
hex1c099c0246

120420303430 has 32 divisors (see below), whose sum is σ = 247735192320. Its totient is φ = 41284723680.

The previous prime is 120420303401. The next prime is 120420303431. The reversal of 120420303430 is 34303024021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120420303431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1739785 + ... + 1807675.

It is an arithmetic number, because the mean of its divisors is an integer number (7741724760).

Almost surely, 2120420303430 is an apocalyptic number.

120420303430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120420303430 is an abundant number, since it is smaller than the sum of its proper divisors (127314888890).

120420303430 is a wasteful number, since it uses less digits than its factorization.

120420303430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93244.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 120420303430 its reverse (34303024021), we get a palindrome (154723327451).

The spelling of 120420303430 in words is "one hundred twenty billion, four hundred twenty million, three hundred three thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 25339 50678 67891 126695 135782 177373 253390 339455 354746 475237 678910 886865 950474 1773730 2376185 4752370 1720290049 3440580098 8601450245 12042030343 17202900490 24084060686 60210151715 120420303430