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20404014043 = 73778779977
BaseRepresentation
bin10011000000001011…
…001000101111011011
31221122222202022022211
4103000023020233123
5313241411422133
613212400455551
71321426154260
oct230013105733
957588668284
1020404014043
118720596826
123b5531a5b7
131c022c32ba
14db7c13267
157e6473bcd
hex4c02c8bdb

20404014043 has 8 divisors (see below), whose sum is σ = 23949113312. Its totient is φ = 17016474816.

The previous prime is 20404014019. The next prime is 20404014049. The reversal of 20404014043 is 34041040402.

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

It is a cyclic number.

It is not a de Polignac number, because 20404014043 - 217 = 20403882971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20404014049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39389730 + ... + 39390247.

It is an arithmetic number, because the mean of its divisors is an integer number (2993639164).

Almost surely, 220404014043 is an apocalyptic number.

20404014043 is a deficient number, since it is larger than the sum of its proper divisors (3545099269).

20404014043 is an equidigital number, since it uses as much as digits as its factorization.

20404014043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78780021.

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

Adding to 20404014043 its reverse (34041040402), we get a palindrome (54445054445).

The spelling of 20404014043 in words is "twenty billion, four hundred four million, fourteen thousand, forty-three".

Divisors: 1 7 37 259 78779977 551459839 2914859149 20404014043