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161473103 = 11139105607
BaseRepresentation
bin10011001111111…
…10001001001111
3102020211200110022
421213332021033
5312314114403
624004532355
74000333031
oct1147761117
9366750408
10161473103
1183169150
12460b10bb
13275b811c
1417633c51
15e298d38
hex99fe24f

161473103 has 8 divisors (see below), whose sum is σ = 177421440. Its totient is φ = 145736280.

The previous prime is 161473063. The next prime is 161473111. The reversal of 161473103 is 301374161.

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 161473103 - 214 = 161456719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161473163) 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, 51275 + ... + 54332.

It is an arithmetic number, because the mean of its divisors is an integer number (22177680).

Almost surely, 2161473103 is an apocalyptic number.

161473103 is a deficient number, since it is larger than the sum of its proper divisors (15948337).

161473103 is a wasteful number, since it uses less digits than its factorization.

161473103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105757.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 161473103 is about 12707.2067347628. The cubic root of 161473103 is about 544.5445264469.

The spelling of 161473103 in words is "one hundred sixty-one million, four hundred seventy-three thousand, one hundred three".

Divisors: 1 11 139 1529 105607 1161677 14679373 161473103