Search a number
-
+
33123002130 = 232517151311461
BaseRepresentation
bin11110110110010010…
…001110011100010010
310011111101202211220200
4132312102032130102
51020313442032010
623114432520030
72251550605221
oct366622163422
9104441684820
1033123002130
1113058086829
1265049b0016
13317b3b4b5a
14186310ccb8
15cdcdb7cc0
hex7b648e712

33123002130 has 192 divisors, whose sum is σ = 92284448256. Its totient is φ = 8213760000.

The previous prime is 33123002093. The next prime is 33123002131. The reversal of 33123002130 is 3120032133.

33123002130 is a `hidden beast` number, since 3 + 312 + 300 + 21 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33123002131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71850100 + ... + 71850560.

It is an arithmetic number, because the mean of its divisors is an integer number (480648168).

Almost surely, 233123002130 is an apocalyptic number.

33123002130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33123002130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46142224128).

33123002130 is an abundant number, since it is smaller than the sum of its proper divisors (59161446126).

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

33123002130 is a wasteful number, since it uses less digits than its factorization.

33123002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 33123002130 its reverse (3120032133), we get a palindrome (36243034263).

The spelling of 33123002130 in words is "thirty-three billion, one hundred twenty-three million, two thousand, one hundred thirty".