Search a number
-
+
23420800 = 275213563
BaseRepresentation
bin101100101010…
…1111110000000
31122001220022001
41121111332000
521443431200
62153553344
7403034134
oct131257600
948056261
1023420800
1112247437
127a15854
134b10480
1431793c4
1520c976a
hex1655f80

23420800 has 96 divisors (see below), whose sum is σ = 62417880. Its totient is φ = 8632320.

The previous prime is 23420791. The next prime is 23420807. The reversal of 23420800 is 802432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41319 + ... + 41881.

Almost surely, 223420800 is an apocalyptic number.

23420800 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 23420800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31208940).

23420800 is an abundant number, since it is smaller than the sum of its proper divisors (38997080).

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

23420800 is a wasteful number, since it uses less digits than its factorization.

23420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 23420800 is about 4839.5041068275. The cubic root of 23420800 is about 286.1105739003.

The spelling of 23420800 in words is "twenty-three million, four hundred twenty thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 200 208 260 320 325 400 416 520 563 640 650 800 832 1040 1126 1300 1600 1664 2080 2252 2600 2815 3200 4160 4504 5200 5630 7319 8320 9008 10400 11260 14075 14638 18016 20800 22520 28150 29276 36032 36595 41600 45040 56300 58552 72064 73190 90080 112600 117104 146380 180160 182975 225200 234208 292760 360320 365950 450400 468416 585520 731900 900800 936832 1171040 1463800 1801600 2342080 2927600 4684160 5855200 11710400 23420800