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11443130551 = 194139145511
BaseRepresentation
bin10101010100001000…
…00101000010110111
31002112111021021002001
422222010011002313
5141413420134201
65131254000131
7553400001436
oct125204050267
932474237061
1011443130551
114942392396
122274346047
13110498a688
147a7aa111d
1546e922301
hex2aa1050b7

11443130551 has 8 divisors (see below), whose sum is σ = 12048393600. Its totient is φ = 10838166840.

The previous prime is 11443130539. The next prime is 11443130557. The reversal of 11443130551 is 15503134411.

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 11443130551 - 211 = 11443128503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11443130557) 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, 5886 + ... + 151396.

It is an arithmetic number, because the mean of its divisors is an integer number (1506049200).

Almost surely, 211443130551 is an apocalyptic number.

11443130551 is a deficient number, since it is larger than the sum of its proper divisors (605263049).

11443130551 is a wasteful number, since it uses less digits than its factorization.

11443130551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149669.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 11443130551 its reverse (15503134411), we get a palindrome (26946264962).

The spelling of 11443130551 in words is "eleven billion, four hundred forty-three million, one hundred thirty thousand, five hundred fifty-one".

Divisors: 1 19 4139 78641 145511 2764709 602270029 11443130551