Search a number
-
+
20020220210 = 2510319437107
BaseRepresentation
bin10010101001010011…
…000101000100110010
31220200020120120011102
4102221103011010302
5312000134021320
613110330444402
71306056030644
oct225123050462
956606516142
1020020220210
11854398a841
123a68893702
131b70937363
14d7cc6a894
157c2912175
hex4a94c5132

20020220210 has 16 divisors (see below), whose sum is σ = 36386266176. Its totient is φ = 7930339248.

The previous prime is 20020220203. The next prime is 20020220249. The reversal of 20020220210 is 1202202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020220191 and 20020220200.

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, 9717524 + ... + 9719583.

It is an arithmetic number, because the mean of its divisors is an integer number (2274141636).

Almost surely, 220020220210 is an apocalyptic number.

20020220210 is a deficient number, since it is larger than the sum of its proper divisors (16366045966).

20020220210 is a wasteful number, since it uses less digits than its factorization.

20020220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19437217.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20020220210 its reverse (1202202002), we get a palindrome (21222422212).

The spelling of 20020220210 in words is "twenty billion, twenty million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 103 206 515 1030 19437107 38874214 97185535 194371070 2002022021 4004044042 10010110105 20020220210