Search a number
-
+
400363161 = 31112132217
BaseRepresentation
bin10111110111010…
…000111010011001
31000220100120000020
4113313100322121
51304443110121
6103421101053
712631013352
oct2767207231
91026316006
10400363161
11195aa3850
12b20b7789
1364c3a9a3
143b25ad29
15252361c6
hex17dd0e99

400363161 has 8 divisors (see below), whose sum is σ = 582346464. Its totient is φ = 242644320.

The previous prime is 400363157. The next prime is 400363189. The reversal of 400363161 is 161363004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400363161 - 22 = 400363157 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (400363261) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6066076 + ... + 6066141.

It is an arithmetic number, because the mean of its divisors is an integer number (72793308).

Almost surely, 2400363161 is an apocalyptic number.

It is an amenable number.

400363161 is a deficient number, since it is larger than the sum of its proper divisors (181983303).

400363161 is a wasteful number, since it uses less digits than its factorization.

400363161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132231.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 400363161 is about 20009.0769652176. The cubic root of 400363161 is about 737.0292150404.

The spelling of 400363161 in words is "four hundred million, three hundred sixty-three thousand, one hundred sixty-one".

Divisors: 1 3 11 33 12132217 36396651 133454387 400363161