Search a number
-
+
7327046989 = 37198028297
BaseRepresentation
bin1101101001011100…
…11101110101001101
3200220122010112220201
412310232131311031
5110001211000424
63211020013501
7346366605013
oct66456356515
920818115821
107327046989
11311aa21939
121505991291
138c9cb3882
144d71708b3
152cd3bbd44
hex1b4b9dd4d

7327046989 has 4 divisors (see below), whose sum is σ = 7525075324. Its totient is φ = 7129018656.

The previous prime is 7327046981. The next prime is 7327047023. The reversal of 7327046989 is 9896407237.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9896407237 = 15763034441.

It can be written as a sum of positive squares in 2 ways, for example, as 4200336100 + 3126710889 = 64810^2 + 55917^2 .

It is a cyclic number.

It is not a de Polignac number, because 7327046989 - 23 = 7327046981 is a prime.

It is a super-2 number, since 2×73270469892 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7327046981) 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, 99014112 + ... + 99014185.

It is an arithmetic number, because the mean of its divisors is an integer number (1881268831).

Almost surely, 27327046989 is an apocalyptic number.

It is an amenable number.

7327046989 is a deficient number, since it is larger than the sum of its proper divisors (198028335).

7327046989 is a wasteful number, since it uses less digits than its factorization.

7327046989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198028334.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 7327046989 is about 85598.1716451935. The cubic root of 7327046989 is about 1942.2702537213.

The spelling of 7327046989 in words is "seven billion, three hundred twenty-seven million, forty-six thousand, nine hundred eighty-nine".

Divisors: 1 37 198028297 7327046989