Search a number
-
+
3780973 = 7540139
BaseRepresentation
bin1110011011000101101101
321010002112001
432123011231
51431442343
6213012301
744065150
oct16330555
97102461
103780973
112152779
121324091
13a24c81
14705c97
154ea44d
hex39b16d

3780973 has 4 divisors (see below), whose sum is σ = 4321120. Its totient is φ = 3240828.

The previous prime is 3780971. The next prime is 3780989. The reversal of 3780973 is 3790873.

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: 3790873 = 15532441.

It is a cyclic number.

It is not a de Polignac number, because 3780973 - 21 = 3780971 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780971) 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, 270063 + ... + 270076.

It is an arithmetic number, because the mean of its divisors is an integer number (1080280).

Almost surely, 23780973 is an apocalyptic number.

It is an amenable number.

3780973 is a deficient number, since it is larger than the sum of its proper divisors (540147).

3780973 is an equidigital number, since it uses as much as digits as its factorization.

3780973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540146.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3780973 is about 1944.4724220209. The cubic root of 3780973 is about 155.7881877733.

It can be divided in two parts, 3780 and 973, that added together give a triangular number (4753 = T97).

The spelling of 3780973 in words is "three million, seven hundred eighty thousand, nine hundred seventy-three".

Divisors: 1 7 540139 3780973