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20404201430 = 252040420143
BaseRepresentation
bin10011000000001011…
…110110011111010110
31221200000002211101002
4103000023312133112
5313241433421210
613212404503302
71321430564504
oct230013663726
957600084332
1020404201430
118720704598
123b553aab32
131c0235a692
14db7c61674
157e64ae4a5
hex4c02f67d6

20404201430 has 8 divisors (see below), whose sum is σ = 36727562592. Its totient is φ = 8161680568.

The previous prime is 20404201423. The next prime is 20404201451. The reversal of 20404201430 is 3410240402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020210062 + ... + 1020210081.

It is an arithmetic number, because the mean of its divisors is an integer number (4590945324).

Almost surely, 220404201430 is an apocalyptic number.

20404201430 is a deficient number, since it is larger than the sum of its proper divisors (16323361162).

20404201430 is a wasteful number, since it uses less digits than its factorization.

20404201430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040420150.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20404201430 its reverse (3410240402), we get a palindrome (23814441832).

The spelling of 20404201430 in words is "twenty billion, four hundred four million, two hundred one thousand, four hundred thirty".

Divisors: 1 2 5 10 2040420143 4080840286 10202100715 20404201430