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40241301421 = 206411949581
BaseRepresentation
bin100101011110100100…
…011000011110101101
310211212111002220211011
4211132210120132231
51124403233121141
630253034425221
72623134263326
oct453644303655
9124774086734
1040241301421
1116080190402
127970892211
133a4406a879
141d3a66144d
1510a7c9d881
hex95e9187ad

40241301421 has 4 divisors (see below), whose sum is σ = 40243271644. Its totient is φ = 40239331200.

The previous prime is 40241301379. The next prime is 40241301473. The reversal of 40241301421 is 12410314204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3045936100 + 37195365321 = 55190^2 + 192861^2 .

It is a cyclic number.

It is not a de Polignac number, because 40241301421 - 215 = 40241268653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40241301392 and 40241301401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40241301521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954150 + ... + 995431.

It is an arithmetic number, because the mean of its divisors is an integer number (10060817911).

Almost surely, 240241301421 is an apocalyptic number.

It is an amenable number.

40241301421 is a deficient number, since it is larger than the sum of its proper divisors (1970223).

40241301421 is a wasteful number, since it uses less digits than its factorization.

40241301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970222.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40241301421 its reverse (12410314204), we get a palindrome (52651615625).

The spelling of 40241301421 in words is "forty billion, two hundred forty-one million, three hundred one thousand, four hundred twenty-one".

Divisors: 1 20641 1949581 40241301421