Search a number
-
+
3780161 = 71124463
BaseRepresentation
bin1110011010111001000001
321010001101222
432122321001
51431431121
6213004425
744062610
oct16327101
97101358
103780161
112152100
121323715
13a247a8
14705877
154ea0ab
hex39ae41

3780161 has 12 divisors (see below), whose sum is σ = 4749696. Its totient is φ = 2944920.

The previous prime is 3780151. The next prime is 3780169. The reversal of 3780161 is 1610873.

3780161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3780161 - 214 = 3763777 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3780161.

It is not an unprimeable number, because it can be changed into a prime (3780169) 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 11 ways as a sum of consecutive naturals, for example, 1385 + ... + 3078.

It is an arithmetic number, because the mean of its divisors is an integer number (395808).

Almost surely, 23780161 is an apocalyptic number.

It is an amenable number.

3780161 is a deficient number, since it is larger than the sum of its proper divisors (969535).

3780161 is a wasteful number, since it uses less digits than its factorization.

3780161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492 (or 4481 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 3780161 is about 1944.2636138137. The cubic root of 3780161 is about 155.7770346420. Note that the first 3 decimals are identical.

The spelling of 3780161 in words is "three million, seven hundred eighty thousand, one hundred sixty-one".

Divisors: 1 7 11 77 121 847 4463 31241 49093 343651 540023 3780161