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3744816893 = 29129131617
BaseRepresentation
bin1101111100110101…
…0101111011111101
3100122222112102000222
43133031111323331
530132133120033
61415332231125
7161541263336
oct33715257375
910588472028
103744816893
1116519403a4
1288616b4a5
13478ab5aac
142774c928d
1516db6a598
hexdf355efd

3744816893 has 4 divisors (see below), whose sum is σ = 3873948540. Its totient is φ = 3615685248.

The previous prime is 3744816883. The next prime is 3744816917. The reversal of 3744816893 is 3986184473.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1682476324 + 2062340569 = 41018^2 + 45413^2 .

It is a cyclic number.

It is not a de Polignac number, because 3744816893 - 216 = 3744751357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3744816883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64565780 + ... + 64565837.

It is an arithmetic number, because the mean of its divisors is an integer number (968487135).

Almost surely, 23744816893 is an apocalyptic number.

It is an amenable number.

3744816893 is a deficient number, since it is larger than the sum of its proper divisors (129131647).

3744816893 is a wasteful number, since it uses less digits than its factorization.

3744816893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129131646.

The product of its digits is 3483648, while the sum is 53.

The square root of 3744816893 is about 61194.9090447890. The cubic root of 3744816893 is about 1552.9001399007.

The spelling of 3744816893 in words is "three billion, seven hundred forty-four million, eight hundred sixteen thousand, eight hundred ninety-three".

Divisors: 1 29 129131617 3744816893