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11103310988 = 2271149173421
BaseRepresentation
bin10100101011100111…
…10001010010001100
31001122210211122021022
422111303301102030
5140214421422423
65033434253312
7542102405030
oct122563612214
931583748238
1011103310988
114788590980
12219a587238
13107c45a203
147748c41c0
1544eb99dc8
hex295cf148c

11103310988 has 48 divisors (see below), whose sum is σ = 24275075328. Its totient is φ = 4317096000.

The previous prime is 11103310961. The next prime is 11103311033. The reversal of 11103310988 is 88901330111.

It is a super-2 number, since 2×111033109882 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114518 + ... + 187938.

It is an arithmetic number, because the mean of its divisors is an integer number (505730736).

Almost surely, 211103310988 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 11103310988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12137537664).

11103310988 is an abundant number, since it is smaller than the sum of its proper divisors (13171764340).

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

11103310988 is a wasteful number, since it uses less digits than its factorization.

11103310988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73934 (or 73932 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 11103310988 in words is "eleven billion, one hundred three million, three hundred ten thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 491 982 1964 3437 5401 6874 10802 13748 21604 37807 73421 75614 146842 151228 293684 513947 807631 1027894 1615262 2055788 3230524 5653417 11306834 22613668 36049711 72099422 144198844 252347977 396546821 504695954 793093642 1009391908 1586187284 2775827747 5551655494 11103310988