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120221332430 = 25471031248099
BaseRepresentation
bin110111111110110111…
…1111111001111001110
3102111022102122110111212
41233331233333033032
53432203130114210
6131121240214422
711454124315313
oct1577557771716
9374272573455
10120221332430
1146a92898491
121b371a6a412
13b44c0003c4
145b668bcd0a
1531d9625805
hex1bfdbff3ce

120221332430 has 32 divisors (see below), whose sum is σ = 221217868800. Its totient is φ = 47019532960.

The previous prime is 120221332403. The next prime is 120221332489. The reversal of 120221332430 is 34233122021.

It is a junction number, because it is equal to n+sod(n) for n = 120221332396 and 120221332405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360521 + ... + 608619.

It is an arithmetic number, because the mean of its divisors is an integer number (6913058400).

Almost surely, 2120221332430 is an apocalyptic number.

120221332430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120221332430 is a deficient number, since it is larger than the sum of its proper divisors (100996536370).

120221332430 is a wasteful number, since it uses less digits than its factorization.

120221332430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249184.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 120221332430 its reverse (34233122021), we get a palindrome (154454454451).

The spelling of 120221332430 in words is "one hundred twenty billion, two hundred twenty-one million, three hundred thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 1031 2062 5155 10310 48457 96914 242285 248099 484570 496198 1240495 2480990 11660653 23321306 58303265 116606530 255790069 511580138 1278950345 2557900690 12022133243 24044266486 60110666215 120221332430