Search a number
-
+
20202031442030 = 2511317877903931
BaseRepresentation
bin1001001011111101001101…
…11010000110100001101110
32122112021222022021010201212
410211332212322012201232
510121442230022121110
6110544403553034422
74153356112653254
oct445764672064156
978467868233655
1020202031442030
1164896a70a0749
122323357555a12
13b370744386c9
144dbad80605d4
1525077b82de05
hex125fa6e8686e

20202031442030 has 16 divisors (see below), whose sum is σ = 36685458868464. Its totient is φ = 8009300960640.

The previous prime is 20202031441997. The next prime is 20202031442071. The reversal of 20202031442030 is 3024413020202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20202031441987 and 20202031442005.

It is a congruent number.

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, 8938950836 + ... + 8938953095.

It is an arithmetic number, because the mean of its divisors is an integer number (2292841179279).

Almost surely, 220202031442030 is an apocalyptic number.

20202031442030 is a deficient number, since it is larger than the sum of its proper divisors (16483427426434).

20202031442030 is a wasteful number, since it uses less digits than its factorization.

20202031442030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17877904051.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20202031442030 its reverse (3024413020202), we get a palindrome (23226444462232).

The spelling of 20202031442030 in words is "twenty trillion, two hundred two billion, thirty-one million, four hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 113 226 565 1130 17877903931 35755807862 89389519655 178779039310 2020203144203 4040406288406 10101015721015 20202031442030