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23293986912 = 2533722918973
BaseRepresentation
bin10101101100011011…
…100000100001100000
32020010101202010211000
4111230123200201200
5340201230040122
614411234552000
71453150423200
oct255433404140
966111663730
1023293986912
119973937159
124621138600
132272c63011
1411ad978400
159150320ac
hex56c6e0860

23293986912 has 288 divisors, whose sum is σ = 81762760800. Its totient is φ = 6425588736.

The previous prime is 23293986889. The next prime is 23293986913. The reversal of 23293986912 is 21968939232.

23293986912 is a `hidden beast` number, since 232 + 9 + 398 + 6 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23293986913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1218258 + ... + 1237230.

It is an arithmetic number, because the mean of its divisors is an integer number (283898475).

Almost surely, 223293986912 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 23293986912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40881380400).

23293986912 is an abundant number, since it is smaller than the sum of its proper divisors (58468773888).

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

23293986912 is a wasteful number, since it uses less digits than its factorization.

23293986912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19035 (or 19014 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The spelling of 23293986912 in words is "twenty-three billion, two hundred ninety-three million, nine hundred eighty-six thousand, nine hundred twelve".