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23112011124 = 2233344962047
BaseRepresentation
bin10101100001100101…
…010100110101110100
32012122201022210222000
4111201211110311310
5334313133323444
614341214335300
71445510565426
oct254145246564
965581283860
1023112011124
119890145044
1245901ba530
132244349a37
141193728816
15904088469
hex561954d74

23112011124 has 48 divisors (see below), whose sum is σ = 59938368000. Its totient is φ = 7701645888.

The previous prime is 23112011123. The next prime is 23112011147. The reversal of 23112011124 is 42111021132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23112011097 and 23112011106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112011123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341469 + ... + 403515.

It is an arithmetic number, because the mean of its divisors is an integer number (1248716000).

Almost surely, 223112011124 is an apocalyptic number.

It is an amenable number.

23112011124 is an abundant number, since it is smaller than the sum of its proper divisors (36826356876).

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

23112011124 is a wasteful number, since it uses less digits than its factorization.

23112011124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65509 (or 65501 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 23112011124 its reverse (42111021132), we get a palindrome (65223032256).

It can be divided in two parts, 2311201 and 1124, that added together give a triangular number (2312325 = T2150).

The spelling of 23112011124 in words is "twenty-three billion, one hundred twelve million, eleven thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3449 6898 10347 13796 20694 31041 41388 62047 62082 93123 124094 124164 186141 186246 248188 372282 372492 558423 744564 1116846 1675269 2233692 3350538 6701076 214000103 428000206 642000309 856000412 1284000618 1926000927 2568001236 3852001854 5778002781 7704003708 11556005562 23112011124