Search a number
400108411 = 922143391
BaseRepresentation
bin10111110110010…
…010101101111011
31000212212121120001
4113312102231323
51304411432121
6103411413431
712625602553
oct2766225573
91025777501
10400108411
1119593a40a
12b1bb4277
1364b7ba51
143b1d2163
15251d5991
hex17d92b7b

400108411 has 4 divisors (see below), whose sum is σ = 400161024. Its totient is φ = 400055800.

The previous prime is 400108409. The next prime is 400108477. The reversal of 400108411 is 114801004.

Adding to 400108411 its reverse (114801004), we get a palindrome (514909415).

It can be divided in two parts, 400 and 108411, that added together give a triangular number (108811 = T466).

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

It is a cyclic number.

It is not a de Polignac number, because 400108411 - 21 = 400108409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400106411) 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, 12475 + ... + 30916.

It is an arithmetic number, because the mean of its divisors is an integer number (100040256).

Almost surely, 2400108411 is an apocalyptic number.

400108411 is a deficient number, since it is larger than the sum of its proper divisors (52613).

400108411 is an equidigital number, since it uses as much as digits as its factorization.

400108411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52612.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 400108411 is about 20002.7100913851. The cubic root of 400108411 is about 736.8728586385.

The spelling of 400108411 in words is "four hundred million, one hundred eight thousand, four hundred eleven".

Divisors: 1 9221 43391 400108411