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166427092 = 221317892
BaseRepresentation
bin10011110101101…
…11100111010100
3102121011101001101
421322313213110
5320101131332
624303035444
74060415116
oct1172674724
9377141041
10166427092
1185a42157
124789bb84
1328630c90
14181633b6
15e926ae7
hex9eb79d4

166427092 has 18 divisors (see below), whose sum is σ = 313826478. Its totient is φ = 76769568.

The previous prime is 166427089. The next prime is 166427101. The reversal of 166427092 is 290724661.

It can be written as a sum of positive squares in 3 ways, for example, as 76632516 + 89794576 = 8754^2 + 9476^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92134 + ... + 93922.

Almost surely, 2166427092 is an apocalyptic number.

It is an amenable number.

166427092 is a deficient number, since it is larger than the sum of its proper divisors (147399386).

166427092 is an equidigital number, since it uses as much as digits as its factorization.

166427092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595 (or 1804 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 166427092 is about 12900.6624636102. The cubic root of 166427092 is about 550.0573956631.

The spelling of 166427092 in words is "one hundred sixty-six million, four hundred twenty-seven thousand, ninety-two".

Divisors: 1 2 4 13 26 52 1789 3578 7156 23257 46514 93028 3200521 6401042 12802084 41606773 83213546 166427092