Search a number
-
+
101830240 = 255897151
BaseRepresentation
bin1100001000111…
…00111001100000
321002121111211101
412010130321200
5202032031430
614034324144
72344354111
oct604347140
9232544741
10101830240
1152531626
122a129654
13181348a5
14d74a208
158e16dca
hex611ce60

101830240 has 48 divisors (see below), whose sum is σ = 243311040. Its totient is φ = 40268800.

The previous prime is 101830237. The next prime is 101830241. The reversal of 101830240 is 42038101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101830241) 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 7 ways as a sum of consecutive naturals, for example, 10665 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (5068980).

Almost surely, 2101830240 is an apocalyptic number.

101830240 is a gapful number since it is divisible by the number (10) 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 101830240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121655520).

101830240 is an abundant number, since it is smaller than the sum of its proper divisors (141480800).

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

101830240 is an equidigital number, since it uses as much as digits as its factorization.

101830240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 101830240 is about 10091.0970662262. The cubic root of 101830240 is about 466.9735215405.

Adding to 101830240 its reverse (42038101), we get a palindrome (143868341).

The spelling of 101830240 in words is "one hundred one million, eight hundred thirty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 89 160 178 356 445 712 890 1424 1780 2848 3560 7120 7151 14240 14302 28604 35755 57208 71510 114416 143020 228832 286040 572080 636439 1144160 1272878 2545756 3182195 5091512 6364390 10183024 12728780 20366048 25457560 50915120 101830240