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1331224113 = 31923354809
BaseRepresentation
bin100111101011000…
…1101111000110001
310102202221012011210
41033112031320301
510211243132423
6340032430333
744663134602
oct11726157061
93382835153
101331224113
1162349441a
123119a83a9
13182a4b19b
14c8b2bda9
157bd0bb93
hex4f58de31

1331224113 has 8 divisors (see below), whose sum is σ = 1868384800. Its totient is φ = 840773088.

The previous prime is 1331224019. The next prime is 1331224159. The reversal of 1331224113 is 3114221331.

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

It is not a de Polignac number, because 1331224113 - 28 = 1331223857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1331224113.

It is not an unprimeable number, because it can be changed into a prime (1331224163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11677348 + ... + 11677461.

It is an arithmetic number, because the mean of its divisors is an integer number (233548100).

Almost surely, 21331224113 is an apocalyptic number.

It is an amenable number.

1331224113 is a deficient number, since it is larger than the sum of its proper divisors (537160687).

1331224113 is a wasteful number, since it uses less digits than its factorization.

1331224113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23354831.

The product of its digits is 432, while the sum is 21.

The square root of 1331224113 is about 36485.9440469888. The cubic root of 1331224113 is about 1100.0617356536.

Adding to 1331224113 its reverse (3114221331), we get a palindrome (4445445444).

The spelling of 1331224113 in words is "one billion, three hundred thirty-one million, two hundred twenty-four thousand, one hundred thirteen".

Divisors: 1 3 19 57 23354809 70064427 443741371 1331224113