Search a number
-
+
5450001641 = 7778571663
BaseRepresentation
bin1010001001101100…
…00110110011101001
3112001211010202202122
411010312012303221
542130200023031
62300444241025
7252025151420
oct50466066351
915054122678
105450001641
112347424997
121081240175
1368b159256
14399b602b7
1521d6e547b
hex144d86ce9

5450001641 has 4 divisors (see below), whose sum is σ = 6228573312. Its totient is φ = 4671429972.

The previous prime is 5450001637. The next prime is 5450001671. The reversal of 5450001641 is 1461000545.

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: 1461000545 = 5292200109.

It is a cyclic number.

It is not a de Polignac number, because 5450001641 - 22 = 5450001637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5450001641.

It is not an unprimeable number, because it can be changed into a prime (5450001671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389285825 + ... + 389285838.

It is an arithmetic number, because the mean of its divisors is an integer number (1557143328).

Almost surely, 25450001641 is an apocalyptic number.

It is an amenable number.

5450001641 is a deficient number, since it is larger than the sum of its proper divisors (778571671).

5450001641 is an equidigital number, since it uses as much as digits as its factorization.

5450001641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778571670.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 5450001641 is about 73824.1264154206. The cubic root of 5450001641 is about 1759.8090401675.

The spelling of 5450001641 in words is "five billion, four hundred fifty million, one thousand, six hundred forty-one".

Divisors: 1 7 778571663 5450001641