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18417053830 = 257263100769
BaseRepresentation
bin10001001001101111…
…011111000010000110
31202112111221021022211
4101021233133002012
5300204231210310
612243301214034
71221251242330
oct211157370206
952474837284
1018417053830
1178a0a4614a
12369ba0131a
1319767632b6
14c69d90450
1572bcd9c8a
hex449bdf086

18417053830 has 16 divisors (see below), whose sum is σ = 37886510880. Its totient is φ = 6314418432.

The previous prime is 18417053813. The next prime is 18417053891. The reversal of 18417053830 is 3835071481.

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, 131550315 + ... + 131550454.

It is an arithmetic number, because the mean of its divisors is an integer number (2367906930).

Almost surely, 218417053830 is an apocalyptic number.

18417053830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18417053830 is an abundant number, since it is smaller than the sum of its proper divisors (19469457050).

18417053830 is a wasteful number, since it uses less digits than its factorization.

18417053830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263100783.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18417053830 in words is "eighteen billion, four hundred seventeen million, fifty-three thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 263100769 526201538 1315503845 1841705383 2631007690 3683410766 9208526915 18417053830