Search a number
-
+
80768387 = 7231014967
BaseRepresentation
bin1001101000001…
…10110110000011
312121222110101202
410310012312003
5131134042022
612003051415
72000343230
oct464066603
9177873352
1080768387
1141656537
1223070b6b
131396c05b
14aa26787
157156592
hex4d06d83

80768387 has 16 divisors (see below), whose sum is σ = 97293312. Its totient is φ = 65551200.

The previous prime is 80768383. The next prime is 80768399. The reversal of 80768387 is 78386708.

It is a cyclic number.

It is not a de Polignac number, because 80768387 - 22 = 80768383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80768383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13778 + ... + 18744.

It is an arithmetic number, because the mean of its divisors is an integer number (6080832).

Almost surely, 280768387 is an apocalyptic number.

80768387 is a deficient number, since it is larger than the sum of its proper divisors (16524925).

80768387 is a wasteful number, since it uses less digits than its factorization.

80768387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 80768387 is about 8987.1233996201. The cubic root of 80768387 is about 432.2620777010.

The spelling of 80768387 in words is "eighty million, seven hundred sixty-eight thousand, three hundred eighty-seven".

Divisors: 1 7 23 101 161 707 2323 4967 16261 34769 114241 501667 799687 3511669 11538341 80768387