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7148971463 = 26327182401
BaseRepresentation
bin1101010100001110…
…01010010111000111
3200110020001101012212
412222013022113013
5104120114041323
63141215134035
7342105153254
oct65207122707
920406041185
107148971463
113039454087
12147621431b
1389c13493a
144bb65842b
152bc943b78
hex1aa1ca5c7

7148971463 has 4 divisors (see below), whose sum is σ = 7176154128. Its totient is φ = 7121788800.

The previous prime is 7148971451. The next prime is 7148971471. The reversal of 7148971463 is 3641798417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3641798417 = 4198691643.

It is a cyclic number.

It is not a de Polignac number, because 7148971463 - 26 = 7148971399 is a prime.

It is a super-2 number, since 2×71489714632 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7148971363) 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, 13590938 + ... + 13591463.

It is an arithmetic number, because the mean of its divisors is an integer number (1794038532).

Almost surely, 27148971463 is an apocalyptic number.

7148971463 is a deficient number, since it is larger than the sum of its proper divisors (27182665).

7148971463 is a wasteful number, since it uses less digits than its factorization.

7148971463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27182664.

The product of its digits is 1016064, while the sum is 50.

The square root of 7148971463 is about 84551.5905409236. The cubic root of 7148971463 is about 1926.4061430634.

The spelling of 7148971463 in words is "seven billion, one hundred forty-eight million, nine hundred seventy-one thousand, four hundred sixty-three".

Divisors: 1 263 27182401 7148971463