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23104433142 = 2337281217519
BaseRepresentation
bin10101100001001000…
…011010101111110110
32012122012001210221000
4111201020122233312
5334304213330032
614340344104130
71445356304250
oct254110325766
965565053830
1023104433142
11988693964a
124589765046
1322428c571b
141192714cd0
1590358ce7c
hex56121abf6

23104433142 has 64 divisors (see below), whose sum is σ = 58887014400. Its totient is φ = 6577744320.

The previous prime is 23104433129. The next prime is 23104433147. The reversal of 23104433142 is 24133440132.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23104433147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2542 + ... + 214977.

It is an arithmetic number, because the mean of its divisors is an integer number (920109600).

Almost surely, 223104433142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23104433142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29443507200).

23104433142 is an abundant number, since it is smaller than the sum of its proper divisors (35782581258).

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

23104433142 is a wasteful number, since it uses less digits than its factorization.

23104433142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217818 (or 217812 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 23104433142 its reverse (24133440132), we get a palindrome (47237873274).

The spelling of 23104433142 in words is "twenty-three billion, one hundred four million, four hundred thirty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 281 378 562 843 1686 1967 2529 3934 5058 5901 7587 11802 15174 17703 35406 53109 106218 217519 435038 652557 1305114 1522633 1957671 3045266 3915342 4567899 5873013 9135798 11746026 13703697 27407394 41111091 61122839 82222182 122245678 183368517 366737034 427859873 550105551 855719746 1100211102 1283579619 1650316653 2567159238 3300633306 3850738857 7701477714 11552216571 23104433142