Search a number
-
+
80672640015 = 3511488925091
BaseRepresentation
bin100101100100001110…
…1101100110000001111
321201020012210201122010
41023020131230300033
52310204143440030
6101021022352303
75554100061132
oct1131035546017
9251205721563
1080672640015
1131238669520
121377512b693
1377b85b4a66
143c94230219
1521725896b0
hex12c876cc0f

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".

Divisors: 1 3 5 11 15 33 55 165 488925091 1466775273 2444625455 5378176001 7333876365 16134528003 26890880005 80672640015