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168152005 = 5729165667
BaseRepresentation
bin10100000010111…
…00101111000101
3102201102000012001
422001130233011
5321021331010
624404025301
74111161040
oct1201345705
9381360161
10168152005
1186a100aa
1248392231
1328ab6138
1418491c57
15eb67c3a
hexa05cbc5

168152005 has 16 divisors (see below), whose sum is σ = 238561920. Its totient is φ = 111327552.

The previous prime is 168152003. The next prime is 168152009. The reversal of 168152005 is 500251861.

It is not a de Polignac number, because 168152005 - 21 = 168152003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168152003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81819 + ... + 83848.

It is an arithmetic number, because the mean of its divisors is an integer number (14910120).

Almost surely, 2168152005 is an apocalyptic number.

It is an amenable number.

168152005 is a deficient number, since it is larger than the sum of its proper divisors (70409915).

168152005 is a wasteful number, since it uses less digits than its factorization.

168152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165708.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 168152005 is about 12967.3437912319. The cubic root of 168152005 is about 551.9512018842.

The spelling of 168152005 in words is "one hundred sixty-eight million, one hundred fifty-two thousand, five".

Divisors: 1 5 7 29 35 145 203 1015 165667 828335 1159669 4804343 5798345 24021715 33630401 168152005