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11330144431 = 61919319479
BaseRepresentation
bin10101000110101010…
…00100100010101111
31002020121122222020221
422203111010202233
5141201004110211
65112140152211
7550525432024
oct124325044257
932217588227
1011330144431
114894631231
122242538667
1310b744b098
14796a8d54b
15464a54c71
hex2a35448af

11330144431 has 8 divisors (see below), whose sum is σ = 11355523200. Its totient is φ = 11304789720.

The previous prime is 11330144407. The next prime is 11330144489. The reversal of 11330144431 is 13444103311.

It is a happy number.

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 11330144431 - 213 = 11330136239 is a prime.

It is a super-2 number, since 2×113301444312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11330144396 and 11330144405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11330144491) 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, 1190550 + ... + 1200028.

It is an arithmetic number, because the mean of its divisors is an integer number (1419440400).

Almost surely, 211330144431 is an apocalyptic number.

11330144431 is a deficient number, since it is larger than the sum of its proper divisors (25378769).

11330144431 is an equidigital number, since it uses as much as digits as its factorization.

11330144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12029.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11330144431 its reverse (13444103311), we get a palindrome (24774247742).

The spelling of 11330144431 in words is "eleven billion, three hundred thirty million, one hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 619 1931 9479 1195289 5867501 18303949 11330144431