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18970432262 = 2101103911777
BaseRepresentation
bin10001101010101110…
…011101001100000110
31210222002012210211022
4101222232131030012
5302322412313022
612414230111142
71241051004455
oct215256351406
953862183738
1018970432262
1180553505a1
1238151ab4b2
131a342b7462
14cbd67cb9c
15760698c42
hex46ab9d306

18970432262 has 16 divisors (see below), whose sum is σ = 29016423072. Its totient is φ = 9300115200.

The previous prime is 18970432259. The next prime is 18970432291. The reversal of 18970432262 is 26223407981.

It is a congruent number.

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, 435083 + ... + 476694.

It is an arithmetic number, because the mean of its divisors is an integer number (1813526442).

Almost surely, 218970432262 is an apocalyptic number.

18970432262 is a deficient number, since it is larger than the sum of its proper divisors (10045990810).

18970432262 is a wasteful number, since it uses less digits than its factorization.

18970432262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911983.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 18970432262 in words is "eighteen billion, nine hundred seventy million, four hundred thirty-two thousand, two hundred sixty-two".

Divisors: 1 2 101 103 202 206 10403 20806 911777 1823554 92089477 93913031 184178954 187826062 9485216131 18970432262