Search a number
-
+
10400103221 = 29805344533
BaseRepresentation
bin10011010111110010…
…01111101100110101
3222211210121222120012
421223321033230311
5132244411300341
64435554150005
7515503263434
oct115371175465
928753558505
1010400103221
114457650532
122022b82305
13c99866a41
1470935311b
1540d0920eb
hex26be4fb35

10400103221 has 8 divisors (see below), whose sum is σ = 10760305080. Its totient is φ = 10040006592.

The previous prime is 10400103199. The next prime is 10400103229. The reversal of 10400103221 is 12230100401.

It can be written as a sum of positive squares in 4 ways, for example, as 3213302596 + 7186800625 = 56686^2 + 84775^2 .

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 10400103221 - 26 = 10400103157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10400103196 and 10400103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10400103229) 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, 211271 + ... + 255803.

It is an arithmetic number, because the mean of its divisors is an integer number (1345038135).

Almost surely, 210400103221 is an apocalyptic number.

It is an amenable number.

10400103221 is a deficient number, since it is larger than the sum of its proper divisors (360201859).

10400103221 is an equidigital number, since it uses as much as digits as its factorization.

10400103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52615.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10400103221 its reverse (12230100401), we get a palindrome (22630203622).

The spelling of 10400103221 in words is "ten billion, four hundred million, one hundred three thousand, two hundred twenty-one".

Divisors: 1 29 8053 44533 233537 1291457 358624249 10400103221