Search a number
-
+
20233211301220 = 2255392318761207
BaseRepresentation
bin1001001100110111010010…
…10111110100110101100100
32122122021110021200002122111
410212123221113310311210
510123000104043114340
6111011001533410404
74155541560253651
oct446335127646544
978567407602574
1020233211301220
1164a0947334415
1223293b9639a04
13b39ca3092728
144dd415074c28
152514a3d15aea
hex1266e95f4d64

20233211301220 has 24 divisors (see below), whose sum is σ = 42490533968064. Its totient is φ = 8093133999456.

The previous prime is 20233211301103. The next prime is 20233211301263. The reversal of 20233211301220 is 2210311233202.

It is a junction number, because it is equal to n+sod(n) for n = 20233211301191 and 20233211301200.

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, 8302144 + ... + 10459063.

It is an arithmetic number, because the mean of its divisors is an integer number (1770438915336).

Almost surely, 220233211301220 is an apocalyptic number.

20233211301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233211301220 is an abundant number, since it is smaller than the sum of its proper divisors (22257322666844).

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

20233211301220 is a wasteful number, since it uses less digits than its factorization.

20233211301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18815139 (or 18815137 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20233211301220 its reverse (2210311233202), we get a palindrome (22443522534422).

The spelling of 20233211301220 in words is "twenty trillion, two hundred thirty-three billion, two hundred eleven million, three hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 53923 107846 215692 269615 539230 1078460 18761207 37522414 75044828 93806035 187612070 375224140 1011660565061 2023321130122 4046642260244 5058302825305 10116605650610 20233211301220