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11131052548 = 22711714311181
BaseRepresentation
bin10100101110111011…
…00110001000000100
31001201202001001112111
422113131212020010
5140244022140143
65040305030404
7542560246150
oct122735461004
931652031474
1011131052548
1147a2209590
1221a7925404
131085121235
14778466060
1545232999d
hex297766204

11131052548 has 96 divisors (see below), whose sum is σ = 24706031616. Its totient is φ = 4262160000.

The previous prime is 11131052539. The next prime is 11131052551. The reversal of 11131052548 is 84525013111.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9424518 + ... + 9425698.

It is an arithmetic number, because the mean of its divisors is an integer number (257354496).

Almost surely, 211131052548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11131052548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12353015808).

11131052548 is an abundant number, since it is smaller than the sum of its proper divisors (13574979068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131052548 is a wasteful number, since it uses less digits than its factorization.

11131052548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705 (or 1703 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 11131052548 its reverse (84525013111), we get a palindrome (95656065659).

The spelling of 11131052548 in words is "eleven billion, one hundred thirty-one million, fifty-two thousand, five hundred forty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 71 77 142 154 284 308 431 497 781 862 994 1181 1562 1724 1988 2362 3017 3124 4724 4741 5467 6034 8267 9482 10934 12068 12991 16534 18964 21868 25982 30601 33068 33187 51964 61202 66374 83851 90937 122404 132748 167702 181874 214207 335404 336611 363748 428414 509011 586957 673222 856828 922361 1018022 1173914 1346444 1844722 2036044 2347828 2356277 3563077 3689444 4712554 5599121 6456527 7126154 9425108 11198242 12913054 14252308 22396484 25826108 36139781 39193847 72279562 78387694 144559124 156775388 252978467 397537591 505956934 795075182 1011913868 1590150364 2782763137 5565526274 11131052548