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10415131421 = 40925464869
BaseRepresentation
bin10011011001100101…
…00100101100011101
3222212211220111101012
421230302210230131
5132312233201141
64441252225005
7516045104432
oct115462445435
928784814335
1010415131421
114465085432
12202800b165
13c9c9c9176
1470b345b89
1540e55eceb
hex26cca4b1d

10415131421 has 4 divisors (see below), whose sum is σ = 10440596700. Its totient is φ = 10389666144.

The previous prime is 10415131403. The next prime is 10415131459. The reversal of 10415131421 is 12413151401.

10415131421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7766896900 + 2648234521 = 88130^2 + 51461^2 .

It is a cyclic number.

It is not a de Polignac number, because 10415131421 - 26 = 10415131357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10415131621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12732026 + ... + 12732843.

It is an arithmetic number, because the mean of its divisors is an integer number (2610149175).

Almost surely, 210415131421 is an apocalyptic number.

It is an amenable number.

10415131421 is a deficient number, since it is larger than the sum of its proper divisors (25465279).

10415131421 is an equidigital number, since it uses as much as digits as its factorization.

10415131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25465278.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 10415131421 its reverse (12413151401), we get a palindrome (22828282822).

The spelling of 10415131421 in words is "ten billion, four hundred fifteen million, one hundred thirty-one thousand, four hundred twenty-one".

Divisors: 1 409 25464869 10415131421