Search a number
-
+
20313022210 = 2513532948189
BaseRepresentation
bin10010111010110000…
…000001111100000010
31221102122112102222221
4102322300001330002
5313100113202320
613155350321254
71316242561045
oct227260017402
957378472887
1020313022210
118684198268
123b2a95922a
131bb94b4a90
14da9ac8c5c
157dd49d3aa
hex4bac01f02

20313022210 has 32 divisors (see below), whose sum is σ = 40118969520. Its totient is φ = 7358677248.

The previous prime is 20313022207. The next prime is 20313022231. The reversal of 20313022210 is 1222031302.

It can be written as a sum of positive squares in 8 ways, for example, as 14756661529 + 5556360681 = 121477^2 + 74541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467205 + ... + 1480984.

Almost surely, 220313022210 is an apocalyptic number.

20313022210 is a deficient number, since it is larger than the sum of its proper divisors (19805947310).

20313022210 is a wasteful number, since it uses less digits than its factorization.

20313022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948262.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20313022210 its reverse (1222031302), we get a palindrome (21535053512).

The spelling of 20313022210 in words is "twenty billion, three hundred thirteen million, twenty-two thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 53 65 106 130 265 530 689 1378 3445 6890 2948189 5896378 14740945 29481890 38326457 76652914 156254017 191632285 312508034 383264570 781270085 1562540170 2031302221 4062604442 10156511105 20313022210