Search a number
-
+
1445456511641 = 1601902846041
BaseRepresentation
bin10101000010001011111…
…011000000001010011001
312010011222100102211210002
4111002023323000022121
5142140243331333031
63024011125302345
7206300521425032
oct25021373001231
95104870384702
101445456511641
1150801857728a
121b41805649b5
13a63c928483c
144dd6374da89
15278edbc5ccb
hex1508bec0299

1445456511641 has 4 divisors (see below), whose sum is σ = 1446359359284. Its totient is φ = 1444553664000.

The previous prime is 1445456511619. The next prime is 1445456511673. The reversal of 1445456511641 is 1461156545441.

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 1291168599616 + 154287912025 = 1136296^2 + 392795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445456511641 - 214 = 1445456495257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445456511341) 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, 451421420 + ... + 451424621.

It is an arithmetic number, because the mean of its divisors is an integer number (361589839821).

Almost surely, 21445456511641 is an apocalyptic number.

It is an amenable number.

1445456511641 is a deficient number, since it is larger than the sum of its proper divisors (902847643).

1445456511641 is an equidigital number, since it uses as much as digits as its factorization.

1445456511641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902847642.

The product of its digits is 1152000, while the sum is 47.

The spelling of 1445456511641 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, six hundred forty-one".

Divisors: 1 1601 902846041 1445456511641