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166230340 = 2259918387
BaseRepresentation
bin10011110100001…
…11100101000100
3102120210101011021
421322013211010
5320023332330
624254520524
74055635363
oct1172074504
9376711137
10166230340
1185918351
1247806144
1328592563
14181117da
15e8d867a
hex9e87944

166230340 has 24 divisors (see below), whose sum is σ = 349477632. Its totient is φ = 66417120.

The previous prime is 166230331. The next prime is 166230343. The reversal of 166230340 is 43032661.

It is not an unprimeable number, because it can be changed into a prime (166230343) 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, 15627 + ... + 24013.

It is an arithmetic number, because the mean of its divisors is an integer number (14561568).

Almost surely, 2166230340 is an apocalyptic number.

166230340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166230340 is an abundant number, since it is smaller than the sum of its proper divisors (183247292).

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

166230340 is a wasteful number, since it uses less digits than its factorization.

166230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9387 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 166230340 is about 12893.0345535875. The cubic root of 166230340 is about 549.8405488191.

The spelling of 166230340 in words is "one hundred sixty-six million, two hundred thirty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 991 1982 3964 4955 8387 9910 16774 19820 33548 41935 83870 167740 8311517 16623034 33246068 41557585 83115170 166230340