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10401324121 = 29358666349
BaseRepresentation
bin10011010111111011…
…11001110001011001
3222211212221000022201
421223331321301121
5132300214332441
64440040250201
7515516540056
oct115375716131
928755830281
1010401324121
114458304841
122023470961
13c99ba3676
1470959002d
1540d233c31
hex26bf79c59

10401324121 has 4 divisors (see below), whose sum is σ = 10759990500. Its totient is φ = 10042657744.

The previous prime is 10401324053. The next prime is 10401324127. The reversal of 10401324121 is 12142310401.

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 7510648896 + 2890675225 = 86664^2 + 53765^2 .

It is a cyclic number.

It is not a de Polignac number, because 10401324121 - 231 = 8253840473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10401324127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179333146 + ... + 179333203.

It is an arithmetic number, because the mean of its divisors is an integer number (2689997625).

Almost surely, 210401324121 is an apocalyptic number.

It is an amenable number.

10401324121 is a deficient number, since it is larger than the sum of its proper divisors (358666379).

10401324121 is an equidigital number, since it uses as much as digits as its factorization.

10401324121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358666378.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10401324121 its reverse (12142310401), we get a palindrome (22543634522).

The spelling of 10401324121 in words is "ten billion, four hundred one million, three hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 29 358666349 10401324121