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166343080 = 23537311149
BaseRepresentation
bin10011110101000…
…11000110101000
3102121000002210211
421322203012220
5320040434310
624301150504
74056615151
oct1172430650
9377002724
10166343080
1185995022
124785b434
1328601977
1418140928
15e90bc8a
hex9ea31a8

166343080 has 32 divisors (see below), whose sum is σ = 375309000. Its totient is φ = 66352896.

The previous prime is 166343063. The next prime is 166343087. The reversal of 166343080 is 80343661.

It can be written as a sum of positive squares in 4 ways, for example, as 122014116 + 44328964 = 11046^2 + 6658^2 .

It is not an unprimeable number, because it can be changed into a prime (166343087) 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 7 ways as a sum of consecutive naturals, for example, 9346 + ... + 20494.

Almost surely, 2166343080 is an apocalyptic number.

166343080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166343080 is an abundant number, since it is smaller than the sum of its proper divisors (208965920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166343080 is a wasteful number, since it uses less digits than its factorization.

166343080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11533 (or 11529 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 166343080 is about 12897.4059407309. The cubic root of 166343080 is about 549.9648241966.

The spelling of 166343080 in words is "one hundred sixty-six million, three hundred forty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 373 746 1492 1865 2984 3730 7460 11149 14920 22298 44596 55745 89192 111490 222980 445960 4158577 8317154 16634308 20792885 33268616 41585770 83171540 166343080