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379892161 = 1134535651
BaseRepresentation
bin10110101001001…
…011000111000001
3222110211112002001
4112221023013001
51234223022121
6101410224001
712262013215
oct2651130701
9873745061
10379892161
11185491670
12a7285001
136092107c
143864c945
1523540991
hex16a4b1c1

379892161 has 4 divisors (see below), whose sum is σ = 414427824. Its totient is φ = 345356500.

The previous prime is 379892159. The next prime is 379892167. The reversal of 379892161 is 161298973.

It is a happy number.

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: 161298973 = 1114663543.

It is a cyclic number.

It is not a de Polignac number, because 379892161 - 21 = 379892159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (379892167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17267815 + ... + 17267836.

It is an arithmetic number, because the mean of its divisors is an integer number (103606956).

Almost surely, 2379892161 is an apocalyptic number.

It is an amenable number.

379892161 is a deficient number, since it is larger than the sum of its proper divisors (34535663).

379892161 is a wasteful number, since it uses less digits than its factorization.

379892161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34535662.

The product of its digits is 163296, while the sum is 46.

The square root of 379892161 is about 19490.8224813629. The cubic root of 379892161 is about 724.2471207786.

It can be divided in two parts, 3798 and 92161, that added together give a palindrome (95959).

The spelling of 379892161 in words is "three hundred seventy-nine million, eight hundred ninety-two thousand, one hundred sixty-one".

Divisors: 1 11 34535651 379892161