Search a number
-
+
5215290400 = 255229224797
BaseRepresentation
bin1001101101101101…
…10000010000100000
3111110110111012110201
410312312300100200
541140103243100
62221301434544
7243145144165
oct46666602040
914413435421
105215290400
112236993961
12101670ba54
1365163a768
1437690406c
15207cd136a
hex136db0420

5215290400 has 72 divisors (see below), whose sum is σ = 13170914820. Its totient is φ = 2014172160.

The previous prime is 5215290359. The next prime is 5215290403. The reversal of 5215290400 is 40925125.

It can be written as a sum of positive squares in 6 ways, for example, as 3810839824 + 1404450576 = 61732^2 + 37476^2 .

It is not an unprimeable number, because it can be changed into a prime (5215290403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 89199 + ... + 135598.

Almost surely, 25215290400 is an apocalyptic number.

5215290400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5215290400 is an abundant number, since it is smaller than the sum of its proper divisors (7955624420).

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

5215290400 is a wasteful number, since it uses less digits than its factorization.

5215290400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224846 (or 224833 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5215290400 is about 72216.9675353376. The cubic root of 5215290400 is about 1734.1746441825.

The spelling of 5215290400 in words is "five billion, two hundred fifteen million, two hundred ninety thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 29 32 40 50 58 80 100 116 145 160 200 232 290 400 464 580 725 800 928 1160 1450 2320 2900 4640 5800 11600 23200 224797 449594 899188 1123985 1798376 2247970 3596752 4495940 5619925 6519113 7193504 8991880 11239850 13038226 17983760 22479700 26076452 32595565 35967520 44959400 52152904 65191130 89918800 104305808 130382260 162977825 179837600 208611616 260764520 325955650 521529040 651911300 1043058080 1303822600 2607645200 5215290400