Search a number
-
+
7340081680 = 24591751021
BaseRepresentation
bin1101101011000000…
…01100001000010000
3200221112122210011001
412311200030020100
5110013030103210
63212203231344
7346615444021
oct66540141020
920845583131
107340081680
113127315008
12150a218554
138cc8c87c9
144d8ba4c48
152ce5e403a
hex1b580c210

7340081680 has 20 divisors (see below), whose sum is σ = 17065690092. Its totient is φ = 2936032640.

The previous prime is 7340081663. The next prime is 7340081711. The reversal of 7340081680 is 861800437.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2969814016 + 4370267664 = 54496^2 + 66108^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45875431 + ... + 45875590.

Almost surely, 27340081680 is an apocalyptic number.

It is an amenable number.

7340081680 is an abundant number, since it is smaller than the sum of its proper divisors (9725608412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7340081680 is a wasteful number, since it uses less digits than its factorization.

7340081680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91751034 (or 91751028 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 7340081680 is about 85674.2766529137. The cubic root of 7340081680 is about 1943.4213265742.

The spelling of 7340081680 in words is "seven billion, three hundred forty million, eighty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 91751021 183502042 367004084 458755105 734008168 917510210 1468016336 1835020420 3670040840 7340081680