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1471144061 = 3174640833
BaseRepresentation
bin101011110101111…
…1110000001111101
310210112012212021002
41113223332001331
511003103102221
6401551420045
751312342512
oct12753760175
93715185232
101471144061
11695471342
12350824625
131a5a2ac5a
14dd551309
158924980b
hex57afe07d

1471144061 has 4 divisors (see below), whose sum is σ = 1475785212. Its totient is φ = 1466502912.

The previous prime is 1471144057. The next prime is 1471144093. The reversal of 1471144061 is 1604411741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1604411741 = 4649345109.

It can be written as a sum of positive squares in 2 ways, for example, as 274399225 + 1196744836 = 16565^2 + 34594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1471144061 - 22 = 1471144057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1471144261) 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, 2320100 + ... + 2320733.

It is an arithmetic number, because the mean of its divisors is an integer number (368946303).

Almost surely, 21471144061 is an apocalyptic number.

It is an amenable number.

1471144061 is a deficient number, since it is larger than the sum of its proper divisors (4641151).

1471144061 is an equidigital number, since it uses as much as digits as its factorization.

1471144061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641150.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1471144061 is about 38355.4958382759. The cubic root of 1471144061 is about 1137.3262621743.

The spelling of 1471144061 in words is "one billion, four hundred seventy-one million, one hundred forty-four thousand, sixty-one".

Divisors: 1 317 4640833 1471144061