Search a number
-
+
1222345371 = 31331342189
BaseRepresentation
bin100100011011011…
…1000001010011011
310011012001120121210
41020312320022123
510000410022441
6321143034203
742201523062
oct11066701233
93135046553
101222345371
11577a89195
122a143b963
131663192b0
14b84a91d9
15724a1616
hex48db829b

1222345371 has 8 divisors (see below), whose sum is σ = 1755162640. Its totient is φ = 752212512.

The previous prime is 1222345321. The next prime is 1222345451. The reversal of 1222345371 is 1735432221.

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

It is not a de Polignac number, because 1222345371 - 29 = 1222344859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222345321) 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, 15671056 + ... + 15671133.

It is an arithmetic number, because the mean of its divisors is an integer number (219395330).

Almost surely, 21222345371 is an apocalyptic number.

1222345371 is a deficient number, since it is larger than the sum of its proper divisors (532817269).

1222345371 is a wasteful number, since it uses less digits than its factorization.

1222345371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31342205.

The product of its digits is 10080, while the sum is 30.

The square root of 1222345371 is about 34962.0561609297. The cubic root of 1222345371 is about 1069.2140182410.

Adding to 1222345371 its reverse (1735432221), we get a palindrome (2957777592).

The spelling of 1222345371 in words is "one billion, two hundred twenty-two million, three hundred forty-five thousand, three hundred seventy-one".

Divisors: 1 3 13 39 31342189 94026567 407448457 1222345371