Search a number
-
+
18108272153 = 591372240291
BaseRepresentation
bin10000110111010101…
…100100111000011001
31201201222220112111102
4100313111210320121
5244041204202103
612152511041145
71210511526236
oct206725447031
951658815442
1018108272153
117752713984
1236145101b5
1319277ac34a
14c3ad7278d
1570eb43e88
hex437564e19

18108272153 has 8 divisors (see below), whose sum is σ = 18549617760. Its totient is φ = 17671407520.

The previous prime is 18108272137. The next prime is 18108272159. The reversal of 18108272153 is 35127280181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18108272153 - 24 = 18108272137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18108272159) by changing a digit.

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, 1112063 + ... + 1128228.

It is an arithmetic number, because the mean of its divisors is an integer number (2318702220).

Almost surely, 218108272153 is an apocalyptic number.

It is an amenable number.

18108272153 is a deficient number, since it is larger than the sum of its proper divisors (441345607).

18108272153 is a wasteful number, since it uses less digits than its factorization.

18108272153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240487.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 18108272153 in words is "eighteen billion, one hundred eight million, two hundred seventy-two thousand, one hundred fifty-three".

Divisors: 1 59 137 8083 2240291 132177169 306919867 18108272153