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23391883280 = 2453127193469
BaseRepresentation
bin10101110010010000…
…111101000000010000
32020101012221210101102
4111302100331000100
5340401310231110
614425053123532
71455446504303
oct256220750020
966335853342
1023391883280
119a14121147
124649a895a8
13228a31b16c
1411bc97cb3a
1591d91d5a5
hex57243d010

23391883280 has 80 divisors (see below), whose sum is σ = 56177356800. Its totient is φ = 9048983040.

The previous prime is 23391883267. The next prime is 23391883297. The reversal of 23391883280 is 8238819332.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6741386 + ... + 6744854.

It is an arithmetic number, because the mean of its divisors is an integer number (702216960).

Almost surely, 223391883280 is an apocalyptic number.

23391883280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23391883280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28088678400).

23391883280 is an abundant number, since it is smaller than the sum of its proper divisors (32785473520).

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

23391883280 is a wasteful number, since it uses less digits than its factorization.

23391883280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232 (or 6226 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 23391883280 in words is "twenty-three billion, three hundred ninety-one million, eight hundred eighty-three thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 2719 3469 5438 6938 10876 13595 13876 17345 21752 27190 27752 34690 43504 54380 55504 69380 84289 107539 108760 138760 168578 215078 217520 277520 337156 421445 430156 537695 674312 842890 860312 1075390 1348624 1685780 1720624 2150780 3371560 4301560 6743120 8603120 9432211 18864422 37728844 47161055 75457688 94322110 150915376 188644220 292398541 377288440 584797082 754576880 1169594164 1461992705 2339188328 2923985410 4678376656 5847970820 11695941640 23391883280