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1022400404213 = 9471079620279
BaseRepresentation
bin11101110000010111101…
…00000001101011110101
310121201222211201212021112
432320023310001223311
5113222334000413323
62101403444524405
7133603015021646
oct16701364015365
93551884655245
101022400404213
11364663413151
121461939b0705
13755480710a6
14376ad4556cd
151b8dd0d8178
hexee0bd01af5

1022400404213 has 4 divisors (see below), whose sum is σ = 1023480025440. Its totient is φ = 1021320782988.

The previous prime is 1022400404177. The next prime is 1022400404243. The reversal of 1022400404213 is 3124040042201.

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 not a de Polignac number, because 1022400404213 - 228 = 1022131968757 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 (1022400404243) 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, 539809193 + ... + 539811086.

It is an arithmetic number, because the mean of its divisors is an integer number (255870006360).

Almost surely, 21022400404213 is an apocalyptic number.

It is an amenable number.

1022400404213 is a deficient number, since it is larger than the sum of its proper divisors (1079621227).

1022400404213 is an equidigital number, since it uses as much as digits as its factorization.

1022400404213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079621226.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1022400404213 its reverse (3124040042201), we get a palindrome (4146440446414).

The spelling of 1022400404213 in words is "one trillion, twenty-two billion, four hundred million, four hundred four thousand, two hundred thirteen".

Divisors: 1 947 1079620279 1022400404213