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11230115312 = 2413431125269
BaseRepresentation
bin10100111010101110…
…11111010111110000
31001222122102222002202
422131113133113300
5140444402142222
65054204202332
7545202255653
oct123527372760
931878388082
1011230115312
11484311a939
122214b393a8
13109c7c7260
1478769189a
1545ad96892
hex29d5df5f0

11230115312 has 40 divisors (see below), whose sum is σ = 23486621760. Its totient is φ = 5171063040.

The previous prime is 11230115297. The next prime is 11230115321. The reversal of 11230115312 is 21351103211.

It is a super-2 number, since 2×112301153122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27014 + ... + 152282.

It is an arithmetic number, because the mean of its divisors is an integer number (587165544).

Almost surely, 211230115312 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 11230115312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11743310880).

11230115312 is an abundant number, since it is smaller than the sum of its proper divisors (12256506448).

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

11230115312 is a wasteful number, since it uses less digits than its factorization.

11230115312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125721 (or 125715 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 11230115312 its reverse (21351103211), we get a palindrome (32581218523).

The spelling of 11230115312 in words is "eleven billion, two hundred thirty million, one hundred fifteen thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 431 862 1724 3448 5603 6896 11206 22412 44824 89648 125269 250538 501076 1002152 1628497 2004304 3256994 6513988 13027976 26055952 53990939 107981878 215963756 431927512 701882207 863855024 1403764414 2807528828 5615057656 11230115312