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23223201344 = 267277187139
BaseRepresentation
bin10101101000001101…
…011110111001000000
32012221110112212021022
4111220031132321000
5340030114420334
614400225445012
71451330645240
oct255015367100
965843485238
1023223201344
119937989992
1246014a0768
1322613aaa75
1411a43cdb20
1590dbed82e
hex56835ee40

23223201344 has 56 divisors (see below), whose sum is σ = 52857318720. Its totient is φ = 9916816896.

The previous prime is 23223201343. The next prime is 23223201347. The reversal of 23223201344 is 44310232232.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (23223201341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30527 + ... + 217665.

Almost surely, 223223201344 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 23223201344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26428659360).

23223201344 is an abundant number, since it is smaller than the sum of its proper divisors (29634117376).

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

23223201344 is a wasteful number, since it uses less digits than its factorization.

23223201344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187435 (or 187425 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23223201344 its reverse (44310232232), we get a palindrome (67533433576).

The spelling of 23223201344 in words is "twenty-three billion, two hundred twenty-three million, two hundred one thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 277 448 554 1108 1939 2216 3878 4432 7756 8864 15512 17728 31024 62048 124096 187139 374278 748556 1309973 1497112 2619946 2994224 5239892 5988448 10479784 11976896 20959568 41919136 51837503 83838272 103675006 207350012 362862521 414700024 725725042 829400048 1451450084 1658800096 2902900168 3317600192 5805800336 11611600672 23223201344