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8472912143 = 63113427753
BaseRepresentation
bin1111110010000011…
…00110000100001111
3210212111021112101212
413321001212010033
5114323031142033
63520431525035
7416652364523
oct77101460417
923774245355
108472912143
113658813333
12178568977b
13a505028a7
145a540bd83
15348cb2748
hex1f906610f

8472912143 has 4 divisors (see below), whose sum is σ = 8486340528. Its totient is φ = 8459483760.

The previous prime is 8472912137. The next prime is 8472912181. The reversal of 8472912143 is 3412192748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8472912143 - 24 = 8472912127 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 8472912143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8472912103) 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, 6713246 + ... + 6714507.

It is an arithmetic number, because the mean of its divisors is an integer number (2121585132).

Almost surely, 28472912143 is an apocalyptic number.

8472912143 is a deficient number, since it is larger than the sum of its proper divisors (13428385).

8472912143 is a wasteful number, since it uses less digits than its factorization.

8472912143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13428384.

The product of its digits is 96768, while the sum is 41.

The square root of 8472912143 is about 92048.4228164720. The cubic root of 8472912143 is about 2038.6573363303.

The spelling of 8472912143 in words is "eight billion, four hundred seventy-two million, nine hundred twelve thousand, one hundred forty-three".

Divisors: 1 631 13427753 8472912143