Search a number
-
+
1031422041421 = 1066396729067
BaseRepresentation
bin11110000001001011000…
…10110101110101001101
310122121021120112111221221
433000211202311311031
5113344323020311141
62105455001523341
7134342412461152
oct17004542656515
93577246474857
101031422041421
11368472942772
12147a911a3551
1376355158a65
1437cc76a0229
151bc6a13abd1
hexf0258b5d4d

1031422041421 has 4 divisors (see below), whose sum is σ = 1031518781152. Its totient is φ = 1031325301692.

The previous prime is 1031422041407. The next prime is 1031422041427. The reversal of 1031422041421 is 1241402241301.

1031422041421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1031422041421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031422041427) 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, 48353871 + ... + 48375196.

It is an arithmetic number, because the mean of its divisors is an integer number (257879695288).

Almost surely, 21031422041421 is an apocalyptic number.

It is an amenable number.

1031422041421 is a deficient number, since it is larger than the sum of its proper divisors (96739731).

1031422041421 is an equidigital number, since it uses as much as digits as its factorization.

1031422041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96739730.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1031422041421 its reverse (1241402241301), we get a palindrome (2272824282722).

The spelling of 1031422041421 in words is "one trillion, thirty-one billion, four hundred twenty-two million, forty-one thousand, four hundred twenty-one".

Divisors: 1 10663 96729067 1031422041421