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23005000 = 235443107
BaseRepresentation
bin101011111000…
…0011101001000
31121021202221001
41113300131020
521342130000
62141024344
7366352654
oct127603510
947252831
1023005000
1111a92aa7
1278550b4
1349c6135
1430aba64
15204646a
hex15f0748

23005000 has 80 divisors (see below), whose sum is σ = 55669680. Its totient is φ = 8904000.

The previous prime is 23004979. The next prime is 23005013. The reversal of 23005000 is 50032.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 214947 + ... + 215053.

It is an arithmetic number, because the mean of its divisors is an integer number (695871).

Almost surely, 223005000 is an apocalyptic number.

23005000 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 23005000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27834840).

23005000 is an abundant number, since it is smaller than the sum of its proper divisors (32664680).

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

23005000 is a wasteful number, since it uses less digits than its factorization.

23005000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 23005000 is about 4796.3527810202. The cubic root of 23005000 is about 284.4073042238.

Adding to 23005000 its reverse (50032), we get a palindrome (23055032).

The spelling of 23005000 in words is "twenty-three million, five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 43 50 86 100 107 125 172 200 214 215 250 344 428 430 500 535 625 856 860 1000 1070 1075 1250 1720 2140 2150 2500 2675 4280 4300 4601 5000 5350 5375 8600 9202 10700 10750 13375 18404 21400 21500 23005 26750 26875 36808 43000 46010 53500 53750 66875 92020 107000 107500 115025 133750 184040 215000 230050 267500 460100 535000 575125 920200 1150250 2300500 2875625 4601000 5751250 11502500 23005000