Base | Representation |
---|---|
bin | 100101100100001110… |
… | …1101100110000001111 |
3 | 21201020012210201122010 |
4 | 1023020131230300033 |
5 | 2310204143440030 |
6 | 101021022352303 |
7 | 5554100061132 |
oct | 1131035546017 |
9 | 251205721563 |
10 | 80672640015 |
11 | 31238669520 |
12 | 1377512b693 |
13 | 77b85b4a66 |
14 | 3c94230219 |
15 | 21725896b0 |
hex | 12c876cc0f |
80672640015 has 16 divisors (see below), whose sum is σ = 140810426496. Its totient is φ = 39114007200.
The previous prime is 80672639981. The next prime is 80672640071. The reversal of 80672640015 is 51004627608.
It is not a de Polignac number, because 80672640015 - 29 = 80672639503 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244462381 + ... + 244462710.
It is an arithmetic number, because the mean of its divisors is an integer number (8800651656).
Almost surely, 280672640015 is an apocalyptic number.
80672640015 is a deficient number, since it is larger than the sum of its proper divisors (60137786481).
80672640015 is a wasteful number, since it uses less digits than its factorization.
80672640015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 488925110.
The product of its (nonzero) digits is 80640, while the sum is 39.
The spelling of 80672640015 in words is "eighty billion, six hundred seventy-two million, six hundred forty thousand, fifteen".
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