Search a number
-
+
80490347 = 711498621
BaseRepresentation
bin1001100110000…
…10111101101011
312121110022222222
410303002331223
5131101142342
611553104255
71665104510
oct463027553
9177408888
1080490347
1141486653
1222b5808b
13138a2632
14a993307
1570eded2
hex4cc2f6b

80490347 has 4 divisors (see below), whose sum is σ = 91988976. Its totient is φ = 68991720.

The previous prime is 80490343. The next prime is 80490349. The reversal of 80490347 is 74309408.

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

It is not a de Polignac number, because 80490347 - 22 = 80490343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80490343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5749304 + ... + 5749317.

It is an arithmetic number, because the mean of its divisors is an integer number (22997244).

Almost surely, 280490347 is an apocalyptic number.

80490347 is a deficient number, since it is larger than the sum of its proper divisors (11498629).

80490347 is a wasteful number, since it uses less digits than its factorization.

80490347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498628.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 80490347 is about 8971.6412656771. The cubic root of 80490347 is about 431.7654959403.

The spelling of 80490347 in words is "eighty million, four hundred ninety thousand, three hundred forty-seven".

Divisors: 1 7 11498621 80490347