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23040000 = 2123254
BaseRepresentation
bin101011111100…
…1000000000000
31121100112221100
41113321000000
521344240000
62141454400
7366560004
oct127710000
947315840
1023040000
1112007325
127871400
134a09049
1430ba704
152051a00
hex15f9000

23040000 has 195 divisors, whose sum is σ = 83163223. Its totient is φ = 6144000.

The previous prime is 23039993. The next prime is 23040023. The reversal of 23040000 is 4032.

The square root of 23040000 is 4800.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 1806336 + 21233664 = 1344^2 + 4608^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4607998 + ... + 4608002.

Almost surely, 223040000 is an apocalyptic number.

23040000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

23040000 is the 4800-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23040000

23040000 is an abundant number, since it is smaller than the sum of its proper divisors (60123223).

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

23040000 is an frugal number, since it uses more digits than its factorization.

23040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The cubic root of 23040000 is about 284.5514643592.

Adding to 23040000 its reverse (4032), we get a palindrome (23044032).

The spelling of 23040000 in words is "twenty-three million, forty thousand".