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5406216385 = 56531655809
BaseRepresentation
bin1010000100011110…
…00101000011000001
3111221202202020200111
411002033011003001
542032442411020
62252241551321
7250654036543
oct50217050301
914852666614
105406216385
112324739429
12106a645541
1368206880b
14394003693
15219946d5a
hex1423c50c1

5406216385 has 8 divisors (see below), whose sum is σ = 6497398440. Its totient is φ = 4318347264.

The previous prime is 5406216383. The next prime is 5406216451. The reversal of 5406216385 is 5836126045.

It can be written as a sum of positive squares in 4 ways, for example, as 84805681 + 5321410704 = 9209^2 + 72948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5406216385 - 21 = 5406216383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5406216383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824640 + ... + 831169.

It is an arithmetic number, because the mean of its divisors is an integer number (812174805).

Almost surely, 25406216385 is an apocalyptic number.

It is an amenable number.

5406216385 is a deficient number, since it is larger than the sum of its proper divisors (1091182055).

5406216385 is a wasteful number, since it uses less digits than its factorization.

5406216385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656467.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 5406216385 is about 73526.9772600506. The cubic root of 5406216385 is about 1755.0836003173.

The spelling of 5406216385 in words is "five billion, four hundred six million, two hundred sixteen thousand, three hundred eighty-five".

Divisors: 1 5 653 3265 1655809 8279045 1081243277 5406216385