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1400331121 = 7490340801
BaseRepresentation
bin101001101110111…
…0101101101110001
310121120222012011121
41103131311231301
510331441043441
6350541542241
746462422010
oct12335655561
93546865147
101400331121
116594a5552
12330b74981
131941663c7
14d3d9aa77
1582e0cdd1
hex53775b71

1400331121 has 8 divisors (see below), whose sum is σ = 1600744064. Its totient is φ = 1200009600.

The previous prime is 1400331071. The next prime is 1400331131. The reversal of 1400331121 is 1211330041.

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 1400331121 - 215 = 1400298353 is a prime.

It is a super-2 number, since 2×14003311212 = 3921854496882233282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400331095 and 1400331104.

It is not an unprimeable number, because it can be changed into a prime (1400331131) 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 7 ways as a sum of consecutive naturals, for example, 13921 + ... + 54721.

It is an arithmetic number, because the mean of its divisors is an integer number (200093008).

Almost surely, 21400331121 is an apocalyptic number.

It is an amenable number.

1400331121 is a deficient number, since it is larger than the sum of its proper divisors (200412943).

1400331121 is an equidigital number, since it uses as much as digits as its factorization.

1400331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45711.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1400331121 is about 37420.9983966222. The cubic root of 1400331121 is about 1118.7771307008. Note that the first 3 decimals are identical.

Adding to 1400331121 its reverse (1211330041), we get a palindrome (2611661162).

The spelling of 1400331121 in words is "one billion, four hundred million, three hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 7 4903 34321 40801 285607 200047303 1400331121