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30432131120 = 2451722376567
BaseRepresentation
bin11100010101111001…
…010111100000110000
32220112212102102211102
4130111321113200300
5444311111143440
621551430103532
72125064563226
oct342571274060
986485372742
1030432131120
11119a7165596
125a937aaba8
132b3ca766a1
1416899b4b16
15bd1a37b15
hex715e57830

30432131120 has 40 divisors (see below), whose sum is σ = 74916749664. Its totient is φ = 11456801792.

The previous prime is 30432131117. The next prime is 30432131143. The reversal of 30432131120 is 2113123403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×304321311202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30432131092 and 30432131101.

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, 11186924 + ... + 11189643.

Almost surely, 230432131120 is an apocalyptic number.

It is an amenable number.

30432131120 is an abundant number, since it is smaller than the sum of its proper divisors (44484618544).

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

30432131120 is a wasteful number, since it uses less digits than its factorization.

30432131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22376597 (or 22376591 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30432131120 its reverse (2113123403), we get a palindrome (32545254523).

The spelling of 30432131120 in words is "thirty billion, four hundred thirty-two million, one hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 22376567 44753134 89506268 111882835 179012536 223765670 358025072 380401639 447531340 760803278 895062680 1521606556 1790125360 1902008195 3043213112 3804016390 6086426224 7608032780 15216065560 30432131120