Search a number
-
+
23200312020 = 22353743475171
BaseRepresentation
bin10101100110110110…
…001010101011010100
32012212212110222000120
4111212312022223110
5340003234441040
614354051111540
71450632253434
oct254666125324
965785428016
1023200312020
119925a75896
1245b58a25b0
1322597254a2
1411a13522c4
1590bbcb7d0
hex566d8aad4

23200312020 has 192 divisors, whose sum is σ = 69734117376. Its totient is φ = 5753341440.

The previous prime is 23200311943. The next prime is 23200312033. The reversal of 23200312020 is 2021300232.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4484035 + ... + 4489205.

It is an arithmetic number, because the mean of its divisors is an integer number (363198528).

Almost surely, 223200312020 is an apocalyptic number.

23200312020 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 23200312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34867058688).

23200312020 is an abundant number, since it is smaller than the sum of its proper divisors (46533805356).

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

23200312020 is a wasteful number, since it uses less digits than its factorization.

23200312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5310 (or 5308 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23200312020 its reverse (2021300232), we get a palindrome (25221612252).

The spelling of 23200312020 in words is "twenty-three billion, two hundred million, three hundred twelve thousand, twenty".