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166496141 = 723785163
BaseRepresentation
bin10011110110010…
…00011110001101
3102121021212202202
421323020132031
5320110334031
624304331245
74061123330
oct1173103615
9377255682
10166496141
1185a8a019
1247913b25
1328656536
1418180617
15e93c2cb
hex9ec878d

166496141 has 4 divisors (see below), whose sum is σ = 190281312. Its totient is φ = 142710972.

The previous prime is 166496119. The next prime is 166496159. The reversal of 166496141 is 141694661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141694661 = 451331397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-166496141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166496095 and 166496104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166496741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11892575 + ... + 11892588.

It is an arithmetic number, because the mean of its divisors is an integer number (47570328).

Almost surely, 2166496141 is an apocalyptic number.

It is an amenable number.

166496141 is a deficient number, since it is larger than the sum of its proper divisors (23785171).

166496141 is an equidigital number, since it uses as much as digits as its factorization.

166496141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23785170.

The product of its digits is 31104, while the sum is 38.

The square root of 166496141 is about 12903.3383664849. The cubic root of 166496141 is about 550.1334563197.

The spelling of 166496141 in words is "one hundred sixty-six million, four hundred ninety-six thousand, one hundred forty-one".

Divisors: 1 7 23785163 166496141