Search a number
-
+
7920740328 = 2332811174487
BaseRepresentation
bin1110110000001110…
…01110011111101000
3202110000021022001220
413120013032133220
5112210202142303
63345544542040
7400166116254
oct73007163750
922400238056
107920740328
1133a5062496
121650781920
13992cb19c7
14551d55264
15315591053
hex1d81ce7e8

7920740328 has 32 divisors (see below), whose sum is σ = 19872336960. Its totient is φ = 2630848640.

The previous prime is 7920740323. The next prime is 7920740341. The reversal of 7920740328 is 8230470297.

It is a self number, because there is not a number n which added to its sum of digits gives 7920740328.

It is not an unprimeable number, because it can be changed into a prime (7920740323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580500 + ... + 593987.

It is an arithmetic number, because the mean of its divisors is an integer number (621010530).

Almost surely, 27920740328 is an apocalyptic number.

It is an amenable number.

7920740328 is an abundant number, since it is smaller than the sum of its proper divisors (11951596632).

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

7920740328 is a wasteful number, since it uses less digits than its factorization.

7920740328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174777 (or 1174773 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 7920740328 is about 88998.5411565830. The cubic root of 7920740328 is about 1993.3730936416.

The spelling of 7920740328 in words is "seven billion, nine hundred twenty million, seven hundred forty thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 281 562 843 1124 1686 2248 3372 6744 1174487 2348974 3523461 4697948 7046922 9395896 14093844 28187688 330030847 660061694 990092541 1320123388 1980185082 2640246776 3960370164 7920740328