Search a number
-
+
20026025320 = 235771521519
BaseRepresentation
bin10010101001101001…
…001110010101101000
31220200122111111021111
4102221221032111220
5312003130302240
613111055120104
71306156256320
oct225151162550
956618444244
1020026025320
118547195254
123a6a813034
131b71bba732
14d7d93c280
157c31ac1ea
hex4a9a4e568

20026025320 has 32 divisors (see below), whose sum is σ = 51495494400. Its totient is φ = 6866065728.

The previous prime is 20026025291. The next prime is 20026025351. The reversal of 20026025320 is 2352062002.

It is a happy number.

It is a super-2 number, since 2×200260253202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20026025291 and 20026025300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35760480 + ... + 35761039.

It is an arithmetic number, because the mean of its divisors is an integer number (1609234200).

Almost surely, 220026025320 is an apocalyptic number.

20026025320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20026025320 is an abundant number, since it is smaller than the sum of its proper divisors (31469469080).

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

20026025320 is a wasteful number, since it uses less digits than its factorization.

20026025320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71521537 (or 71521533 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20026025320 its reverse (2352062002), we get a palindrome (22378087322).

The spelling of 20026025320 in words is "twenty billion, twenty-six million, twenty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 71521519 143043038 286086076 357607595 500650633 572172152 715215190 1001301266 1430430380 2002602532 2503253165 2860860760 4005205064 5006506330 10013012660 20026025320