Search a number
-
+
168956341 = 198892439
BaseRepresentation
bin10100001001000…
…01000110110101
3102202220212112021
422010201012311
5321223100331
624433153141
74121051041
oct1204410665
9382825467
10168956341
118740a444
12486bb7b1
1329008288
1418621021
15ec76211
hexa1211b5

168956341 has 4 divisors (see below), whose sum is σ = 177848800. Its totient is φ = 160063884.

The previous prime is 168956329. The next prime is 168956363. The reversal of 168956341 is 143659861.

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: 143659861 = 433340927.

It is a cyclic number.

It is not a de Polignac number, because 168956341 - 25 = 168956309 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168956311) 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 in 3 ways as a sum of consecutive naturals, for example, 4446201 + ... + 4446238.

It is an arithmetic number, because the mean of its divisors is an integer number (44462200).

Almost surely, 2168956341 is an apocalyptic number.

It is an amenable number.

168956341 is a deficient number, since it is larger than the sum of its proper divisors (8892459).

168956341 is an equidigital number, since it uses as much as digits as its factorization.

168956341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8892458.

The product of its digits is 155520, while the sum is 43.

The square root of 168956341 is about 12998.3206992288. The cubic root of 168956341 is about 552.8298676463.

The spelling of 168956341 in words is "one hundred sixty-eight million, nine hundred fifty-six thousand, three hundred forty-one".

Divisors: 1 19 8892439 168956341