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1222402441 = 13531774169
BaseRepresentation
bin100100011011100…
…0110000110001001
310011012011110220111
41020313012012021
510000413334231
6321144154321
742202151341
oct11067060611
93135143814
101222402441
11578018057
122a14689a1
13166339270
14b84c1d21
15724b34b1
hex48dc6189

1222402441 has 8 divisors (see below), whose sum is σ = 1341272520. Its totient is φ = 1107080832.

The previous prime is 1222402429. The next prime is 1222402453. The reversal of 1222402441 is 1442042221.

It is an interprime number because it is at equal distance from previous prime (1222402429) and next prime (1222402453).

It can be written as a sum of positive squares in 4 ways, for example, as 328153225 + 894249216 = 18115^2 + 29904^2 .

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

It is not a de Polignac number, because 1222402441 - 213 = 1222394249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222402421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886396 + ... + 887773.

It is an arithmetic number, because the mean of its divisors is an integer number (167659065).

Almost surely, 21222402441 is an apocalyptic number.

It is an amenable number.

1222402441 is a deficient number, since it is larger than the sum of its proper divisors (118870079).

1222402441 is a wasteful number, since it uses less digits than its factorization.

1222402441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774235.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1222402441 is about 34962.8723219360. The cubic root of 1222402441 is about 1069.2306581356.

Adding to 1222402441 its reverse (1442042221), we get a palindrome (2664444662).

The spelling of 1222402441 in words is "one billion, two hundred twenty-two million, four hundred two thousand, four hundred forty-one".

Divisors: 1 13 53 689 1774169 23064197 94030957 1222402441