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23050240 = 21152251
BaseRepresentation
bin101011111101…
…1100000000000
31121101001222121
41113323200000
521400101430
62142014024
7366631603
oct127734000
947331877
1023050240
1112013a94
127877314
134a108c5
1430c033a
152054a7a
hex15fb800

23050240 has 48 divisors (see below), whose sum is σ = 55331640. Its totient is φ = 9216000.

The previous prime is 23050229. The next prime is 23050243. The reversal of 23050240 is 4205032.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23050243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9115 + ... + 11365.

Almost surely, 223050240 is an apocalyptic number.

23050240 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 23050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27665820).

23050240 is an abundant number, since it is smaller than the sum of its proper divisors (32281400).

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

23050240 is an equidigital number, since it uses as much as digits as its factorization.

23050240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 23050240 is about 4801.0665481745. The cubic root of 23050240 is about 284.5936138879.

Adding to 23050240 its reverse (4205032), we get a palindrome (27255272).

The spelling of 23050240 in words is "twenty-three million, fifty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2048 2251 2560 4502 5120 9004 10240 11255 18008 22510 36016 45020 72032 90040 144064 180080 288128 360160 576256 720320 1152512 1440640 2305024 2881280 4610048 5762560 11525120 23050240