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11220044213 = 72571762327
BaseRepresentation
bin10100111001100010…
…00100100110110101
31001221221111022011002
422130301010212311
5140434312403323
65053204253045
7545020542110
oct123461044665
931857438132
1011220044213
114838471314
1222116a1185
13109a6ac221
147861cd577
1545a057828
hex29cc449b5

11220044213 has 8 divisors (see below), whose sum is σ = 12823612032. Its totient is φ = 9616652496.

The previous prime is 11220044177. The next prime is 11220044237. The reversal of 11220044213 is 31244002211.

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

It is a cyclic number.

It is not a de Polignac number, because 11220044213 - 228 = 10951608757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220044263) 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, 148856 + ... + 211182.

It is an arithmetic number, because the mean of its divisors is an integer number (1602951504).

Almost surely, 211220044213 is an apocalyptic number.

It is an amenable number.

11220044213 is a deficient number, since it is larger than the sum of its proper divisors (1603567819).

11220044213 is an equidigital number, since it uses as much as digits as its factorization.

11220044213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88051.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11220044213 its reverse (31244002211), we get a palindrome (42464046424).

The spelling of 11220044213 in words is "eleven billion, two hundred twenty million, forty-four thousand, two hundred thirteen".

Divisors: 1 7 25717 62327 180019 436289 1602863459 11220044213