Search a number
-
+
7948079104 = 212721992
BaseRepresentation
bin1110110011011111…
…00001000000000000
3202111220201020211011
413121233201000000
5112234202012404
63352402530304
7400650362200
oct73157410000
922456636734
107948079104
113409535519
121659966994
139988645b4
14555830400
15317b91604
hex1d9be1000

7948079104 has 117 divisors (see below), whose sum is σ = 18582569487. Its totient is φ = 3389202432.

The previous prime is 7948079047. The next prime is 7948079123. The reversal of 7948079104 is 4019708497.

The square root of 7948079104 is 89152.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×79480791042 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39939997 + ... + 39940195.

Almost surely, 27948079104 is an apocalyptic number.

7948079104 is the 89152-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7948079104

7948079104 is an abundant number, since it is smaller than the sum of its proper divisors (10634490383).

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

7948079104 is an frugal number, since it uses more digits than its factorization.

7948079104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The cubic root of 7948079104 is about 1995.6638644248.

Multiplying 7948079104 by its sum of digits (49), we get a square (389455876096 = 6240642).

7948079104 divided by its sum of digits (49) gives a square (162205696 = 127362).

The spelling of 7948079104 in words is "seven billion, nine hundred forty-eight million, seventy-nine thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 199 224 256 392 398 448 512 784 796 896 1024 1393 1568 1592 1792 2048 2786 3136 3184 3584 4096 5572 6272 6368 7168 9751 11144 12544 12736 14336 19502 22288 25088 25472 28672 39004 39601 44576 50176 50944 78008 79202 89152 100352 101888 156016 158404 178304 200704 203776 277207 312032 316808 356608 407552 554414 624064 633616 713216 815104 1108828 1248128 1267232 1426432 1940449 2217656 2496256 2534464 2852864 3880898 4435312 4992512 5068928 5705728 7761796 8870624 9985024 10137856 15523592 17741248 19970048 20275712 31047184 35482496 39940096 40551424 62094368 70964992 81102848 124188736 141929984 162205696 248377472 283859968 496754944 567719936 993509888 1135439872 1987019776 3974039552 7948079104