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18424703905 = 589359115331
BaseRepresentation
bin10001001010001100…
…101010101110100001
31202120001022221020221
4101022030222232201
5300213211011110
612244133203041
71221403253626
oct211214525641
952501287227
1018424703905
1178a52a0823
1236a2490481
13197821137a
14c6adc234d
1572c7eb7da
hex44a32aba1

18424703905 has 16 divisors (see below), whose sum is σ = 22420540800. Its totient is φ = 14533425280.

The previous prime is 18424703879. The next prime is 18424703917. The reversal of 18424703905 is 50930742481.

It is not a de Polignac number, because 18424703905 - 215 = 18424671137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102090 + ... + 217420.

It is an arithmetic number, because the mean of its divisors is an integer number (1401283800).

Almost surely, 218424703905 is an apocalyptic number.

It is an amenable number.

18424703905 is a deficient number, since it is larger than the sum of its proper divisors (3995836895).

18424703905 is a wasteful number, since it uses less digits than its factorization.

18424703905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115784.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 18424703905 in words is "eighteen billion, four hundred twenty-four million, seven hundred three thousand, nine hundred five".

Divisors: 1 5 89 359 445 1795 31951 115331 159755 576655 10264459 41403829 51322295 207019145 3684940781 18424703905