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14431210040 = 2351327752327
BaseRepresentation
bin11010111000010101…
…01100101000111000
31101020201212102112202
431130022230220320
5214023342210130
610343554525332
71020422155442
oct153412545070
941221772482
1014431210040
116136050775
122968b96848
13148ca5a150
149ac883492
15596e0e145
hex35c2aca38

14431210040 has 32 divisors (see below), whose sum is σ = 34967933280. Its totient is φ = 5328446592.

The previous prime is 14431210021. The next prime is 14431210043. The reversal of 14431210040 is 4001213441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 14431209994 and 14431210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14431210043) 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, 13875644 + ... + 13876683.

It is an arithmetic number, because the mean of its divisors is an integer number (1092747915).

Almost surely, 214431210040 is an apocalyptic number.

14431210040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14431210040 is an abundant number, since it is smaller than the sum of its proper divisors (20536723240).

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

14431210040 is a wasteful number, since it uses less digits than its factorization.

14431210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27752351 (or 27752347 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 14431210040 its reverse (4001213441), we get a palindrome (18432423481).

The spelling of 14431210040 in words is "fourteen billion, four hundred thirty-one million, two hundred ten thousand, forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 27752327 55504654 111009308 138761635 222018616 277523270 360780251 555046540 721560502 1110093080 1443121004 1803901255 2886242008 3607802510 7215605020 14431210040