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1441400331 = 3768638111
BaseRepresentation
bin101010111101010…
…0000011000001011
310201110020201112110
41111322200120023
510422444302311
6355010113403
750501462220
oct12572403013
93643221473
101441400331
1167a6a6448
1234287b863
1319c815807
14d960b947
15868218a6
hex55ea060b

1441400331 has 8 divisors (see below), whose sum is σ = 2196419584. Its totient is φ = 823657320.

The previous prime is 1441400329. The next prime is 1441400339. The reversal of 1441400331 is 1330041441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1441400331 - 21 = 1441400329 is a prime.

It is a super-2 number, since 2×14414003312 = 4155269828413819122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 68638111 = 1441400331 / (1 + 4 + 4 + 1 + 4 + 0 + 0 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1441400298 and 1441400307.

It is not an unprimeable number, because it can be changed into a prime (1441400339) 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, 34319035 + ... + 34319076.

It is an arithmetic number, because the mean of its divisors is an integer number (274552448).

Almost surely, 21441400331 is an apocalyptic number.

1441400331 is a deficient number, since it is larger than the sum of its proper divisors (755019253).

1441400331 is an equidigital number, since it uses as much as digits as its factorization.

1441400331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68638121.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1441400331 is about 37965.7784195188. The cubic root of 1441400331 is about 1129.6091610463.

Adding to 1441400331 its reverse (1330041441), we get a palindrome (2771441772).

The spelling of 1441400331 in words is "one billion, four hundred forty-one million, four hundred thousand, three hundred thirty-one".

Divisors: 1 3 7 21 68638111 205914333 480466777 1441400331