Search a number
-
+
80530654 = 240265327
BaseRepresentation
bin1001100110011…
…00110011011110
312121112101021211
410303030303132
5131103440104
611554015034
71665333151
oct463146336
9177471254
1080530654
1141503966
1222b7747a
13138b7a99
14a9a3c98
15710ae04
hex4ccccde

80530654 has 4 divisors (see below), whose sum is σ = 120795984. Its totient is φ = 40265326.

The previous prime is 80530643. The next prime is 80530657. The reversal of 80530654 is 45603508.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80530657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20132662 + ... + 20132665.

It is an arithmetic number, because the mean of its divisors is an integer number (30198996).

Almost surely, 280530654 is an apocalyptic number.

80530654 is a deficient number, since it is larger than the sum of its proper divisors (40265330).

80530654 is a wasteful number, since it uses less digits than its factorization.

80530654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40265329.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 80530654 is about 8973.8873405008. The cubic root of 80530654 is about 431.8375553789.

The spelling of 80530654 in words is "eighty million, five hundred thirty thousand, six hundred fifty-four".

Divisors: 1 2 40265327 80530654