Search a number
-
+
23530525000 = 2355941221
BaseRepresentation
bin10101111010100001…
…110101000101001000
32020201212211112001221
4111322201311011020
5341142303300000
614450524451424
71462052106463
oct257241650510
966655745057
1023530525000
119a85405784
1246883a9b74
1322acc71198
1411d314c2da
1592aba761a
hex57a875148

23530525000 has 48 divisors (see below), whose sum is σ = 55146196980. Its totient is φ = 9412200000.

The previous prime is 23530524989. The next prime is 23530525001. The reversal of 23530525000 is 52503532.

It can be written as a sum of positive squares in 6 ways, for example, as 9328082724 + 14202442276 = 96582^2 + 119174^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23530525001) 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, 445611 + ... + 495610.

Almost surely, 223530525000 is an apocalyptic number.

23530525000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23530525000 is an abundant number, since it is smaller than the sum of its proper divisors (31615671980).

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

23530525000 is an frugal number, since it uses more digits than its factorization.

23530525000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941252 (or 941228 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The spelling of 23530525000 in words is "twenty-three billion, five hundred thirty million, five hundred twenty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 3125 5000 6250 12500 25000 941221 1882442 3764884 4706105 7529768 9412210 18824420 23530525 37648840 47061050 94122100 117652625 188244200 235305250 470610500 588263125 941221000 1176526250 2353052500 2941315625 4706105000 5882631250 11765262500 23530525000