Search a number
-
+
168441049 = 7172531571
BaseRepresentation
bin10100000101000…
…11010011011001
3102201221200200101
422002203103121
5321110103144
624414135401
74113503530
oct1202432331
9381850611
10168441049
1187098287
12484b1561
1328b8787a
1418529317
15ebc36d4
hexa0a34d9

168441049 has 24 divisors (see below), whose sum is σ = 208484928. Its totient is φ = 133236480.

The previous prime is 168441001. The next prime is 168441067. The reversal of 168441049 is 940144861.

It is not a de Polignac number, because 168441049 - 211 = 168439001 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168440999 and 168441017.

It is not an unprimeable number, because it can be changed into a prime (168441349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106434 + ... + 108004.

It is an arithmetic number, because the mean of its divisors is an integer number (8686872).

Almost surely, 2168441049 is an apocalyptic number.

It is an amenable number.

168441049 is a deficient number, since it is larger than the sum of its proper divisors (40043879).

168441049 is a wasteful number, since it uses less digits than its factorization.

168441049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 168441049 is about 12978.4840794293. The cubic root of 168441049 is about 552.2672787139.

The spelling of 168441049 in words is "one hundred sixty-eight million, four hundred forty-one thousand, forty-nine".

Divisors: 1 7 17 53 119 289 371 901 1571 2023 6307 10997 15317 26707 83263 107219 186949 454019 582841 1415471 3178133 9908297 24063007 168441049