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20341024420 = 2251607363277
BaseRepresentation
bin10010111100011010…
…110110011010100100
31221111121020002210211
4102330122312122210
5313124300240140
613202230425204
71320032566123
oct227432663244
957447202724
1020341024420
118698a83792
123b38202204
131bc223a632
14dad6d7aba
157e0b802ea
hex4bc6b66a4

20341024420 has 24 divisors (see below), whose sum is σ = 42719484024. Its totient is φ = 8135774976.

The previous prime is 20341024411. The next prime is 20341024481. The reversal of 20341024420 is 2442014302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 649638144 + 19691386276 = 25488^2 + 140326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20341024391 and 20341024400.

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, 289822 + ... + 353098.

It is an arithmetic number, because the mean of its divisors is an integer number (1779978501).

Almost surely, 220341024420 is an apocalyptic number.

20341024420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20341024420 is an abundant number, since it is smaller than the sum of its proper divisors (22378459604).

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

20341024420 is a wasteful number, since it uses less digits than its factorization.

20341024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79359 (or 79357 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20341024420 its reverse (2442014302), we get a palindrome (22783038722).

The spelling of 20341024420 in words is "twenty billion, three hundred forty-one million, twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 16073 32146 63277 64292 80365 126554 160730 253108 316385 321460 632770 1265540 1017051221 2034102442 4068204884 5085256105 10170512210 20341024420