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166140248 = 2320767531
BaseRepresentation
bin10011110011100…
…01100101011000
3102120121210120112
421321301211120
5320012441443
624252543452
74055111621
oct1171614530
9376553515
10166140248
118586669a
1247781b88
1328560551
14180caa48
15e8bbb18
hex9e71958

166140248 has 8 divisors (see below), whose sum is σ = 311512980. Its totient is φ = 83070120.

The previous prime is 166140223. The next prime is 166140277. The reversal of 166140248 is 842041661.

166140248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10383758 + ... + 10383773.

Almost surely, 2166140248 is an apocalyptic number.

It is an amenable number.

166140248 is a deficient number, since it is larger than the sum of its proper divisors (145372732).

166140248 is a wasteful number, since it uses less digits than its factorization.

166140248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20767537 (or 20767533 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 166140248 is about 12889.5402555716. The cubic root of 166140248 is about 549.7411983506.

The spelling of 166140248 in words is "one hundred sixty-six million, one hundred forty thousand, two hundred forty-eight".

Divisors: 1 2 4 8 20767531 41535062 83070124 166140248