Search a number
-
+
3151320641 = 72985318199
BaseRepresentation
bin1011101111010101…
…0101011001000001
322010121202200020022
42323311111121001
522423214230031
61240411423225
7141043532510
oct27365253101
98117680208
103151320641
111377924927
1273b454b15
133b2b56591
1421c756677
151369d497b
hexbbd55641

3151320641 has 16 divisors (see below), whose sum is σ = 3730272000. Its totient is φ = 2604788928.

The previous prime is 3151320637. The next prime is 3151320649. The reversal of 3151320641 is 1460231513.

It is not a de Polignac number, because 3151320641 - 22 = 3151320637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3151320641.

It is not an unprimeable number, because it can be changed into a prime (3151320649) 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 15 ways as a sum of consecutive naturals, for example, 164060 + ... + 182258.

It is an arithmetic number, because the mean of its divisors is an integer number (233142000).

Almost surely, 23151320641 is an apocalyptic number.

It is an amenable number.

3151320641 is a deficient number, since it is larger than the sum of its proper divisors (578951359).

3151320641 is a wasteful number, since it uses less digits than its factorization.

3151320641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19088.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 3151320641 is about 56136.6247738497. The cubic root of 3151320641 is about 1466.1020399336.

The spelling of 3151320641 in words is "three billion, one hundred fifty-one million, three hundred twenty thousand, six hundred forty-one".

Divisors: 1 7 29 203 853 5971 18199 24737 127393 173159 527771 3694397 15523747 108666229 450188663 3151320641