Search a number
-
+
20323202030 = 252970080007
BaseRepresentation
bin10010111011010110…
…110111001111101110
31221110100200122002022
4102323112313033232
5313110214431110
613200352430142
71316425236605
oct227326671756
957410618068
1020323202030
118689a1053a
123b32248352
131bbb63a441
14dab1b8a3c
157de30e755
hex4bb5b73ee

20323202030 has 16 divisors (see below), whose sum is σ = 37843204320. Its totient is φ = 7848960672.

The previous prime is 20323201967. The next prime is 20323202033. The reversal of 20323202030 is 3020232302.

It is a super-2 number, since 2×203232020302 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323202033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35039714 + ... + 35040293.

It is an arithmetic number, because the mean of its divisors is an integer number (2365200270).

Almost surely, 220323202030 is an apocalyptic number.

20323202030 is a deficient number, since it is larger than the sum of its proper divisors (17520002290).

20323202030 is a wasteful number, since it uses less digits than its factorization.

20323202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70080043.

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20323202030 its reverse (3020232302), we get a palindrome (23343434332).

The spelling of 20323202030 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, thirty".

Divisors: 1 2 5 10 29 58 145 290 70080007 140160014 350400035 700800070 2032320203 4064640406 10161601015 20323202030