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166106144 = 255190817
BaseRepresentation
bin10011110011010…
…01010000100000
3102120120001210102
421321221100200
5320010344034
624252121532
74054610321
oct1171512040
9376501712
10166106144
1185843006
12477662a8
132854ab79
14180bc448
15e8b197e
hex9e69420

166106144 has 12 divisors (see below), whose sum is σ = 327021534. Its totient is φ = 83053056.

The previous prime is 166106141. The next prime is 166106147. The reversal of 166106144 is 441601661.

It is an interprime number because it is at equal distance from previous prime (166106141) and next prime (166106147).

It can be written as a sum of positive squares in only one way, i.e., 124992400 + 41113744 = 11180^2 + 6412^2 .

It is not an unprimeable number, because it can be changed into a prime (166106141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595377 + ... + 2595440.

Almost surely, 2166106144 is an apocalyptic number.

It is an amenable number.

166106144 is a deficient number, since it is larger than the sum of its proper divisors (160915390).

166106144 is an equidigital number, since it uses as much as digits as its factorization.

166106144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190827 (or 5190819 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 166106144 is about 12888.2172545314. The cubic root of 166106144 is about 549.7035802196.

The spelling of 166106144 in words is "one hundred sixty-six million, one hundred six thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 5190817 10381634 20763268 41526536 83053072 166106144