Search a number
-
+
8042455 = 55632857
BaseRepresentation
bin11110101011011111010111
3120010121011201
4132223133113
54024324310
6444213331
7125234251
oct36533727
916117151
108042455
1145a3463
12283a247
131887865
1410d4cd1
15a8ce3a
hex7ab7d7

8042455 has 8 divisors (see below), whose sum is σ = 9671472. Its totient is φ = 6420288.

The previous prime is 8042449. The next prime is 8042471. The reversal of 8042455 is 5542408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8042455 - 211 = 8040407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1387 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (1208934).

Almost surely, 28042455 is an apocalyptic number.

8042455 is a deficient number, since it is larger than the sum of its proper divisors (1629017).

8042455 is a wasteful number, since it uses less digits than its factorization.

8042455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8042455 is about 2835.9222485816. The cubic root of 8042455 is about 200.3531676626.

The spelling of 8042455 in words is "eight million, forty-two thousand, four hundred fifty-five".

Divisors: 1 5 563 2815 2857 14285 1608491 8042455