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3806050945 = 5761210189
BaseRepresentation
bin1110001011011011…
…1011101010000001
3100211020202102100211
43202312323222001
530243322112240
61425400514121
7163213620304
oct34266735201
910736672324
103806050945
111683464454
128a277b941
134886a5668
142816a8b3b
15174213bea
hexe2dbba81

3806050945 has 4 divisors (see below), whose sum is σ = 4567261140. Its totient is φ = 3044840752.

The previous prime is 3806050943. The next prime is 3806050961. The reversal of 3806050945 is 5490506083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5490506083 = 7969500077.

It can be written as a sum of positive squares in 2 ways, for example, as 1322922384 + 2483128561 = 36372^2 + 49831^2 .

It is a cyclic number.

It is not a de Polignac number, because 3806050945 - 21 = 3806050943 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3806050898 and 3806050907.

It is not an unprimeable number, because it can be changed into a prime (3806050943) 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 3 ways as a sum of consecutive naturals, for example, 380605090 + ... + 380605099.

It is an arithmetic number, because the mean of its divisors is an integer number (1141815285).

Almost surely, 23806050945 is an apocalyptic number.

It is an amenable number.

3806050945 is a deficient number, since it is larger than the sum of its proper divisors (761210195).

3806050945 is an equidigital number, since it uses as much as digits as its factorization.

3806050945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761210194.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 3806050945 is about 61693.2001520427. The cubic root of 3806050945 is about 1561.3185959913.

The spelling of 3806050945 in words is "three billion, eight hundred six million, fifty thousand, nine hundred forty-five".

Divisors: 1 5 761210189 3806050945