Search a number
-
+
33130321200 = 24325253891951
BaseRepresentation
bin11110110110101110…
…001001010100110000
310011111220112200210100
4132312232021110300
51020322330234300
623115253432400
72252000040504
oct366656112460
9104456480710
1033130321200
1113061225749
12650733b700
13317ca78372
141864096304
15cdd861700
hex7b6b89530

33130321200 has 360 divisors, whose sum is σ = 118517592960. Its totient is φ = 8566272000.

The previous prime is 33130321193. The next prime is 33130321247. The reversal of 33130321200 is 212303133.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16980225 + ... + 16982175.

It is an arithmetic number, because the mean of its divisors is an integer number (329215536).

Almost surely, 233130321200 is an apocalyptic number.

33130321200 is a gapful number since it is divisible by the number (30) 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 33130321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59258796480).

33130321200 is an abundant number, since it is smaller than the sum of its proper divisors (85387271760).

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

33130321200 is a wasteful number, since it uses less digits than its factorization.

33130321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117 (or 2103 counting only the distinct ones).

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

Adding to 33130321200 its reverse (212303133), we get a palindrome (33342624333).

The spelling of 33130321200 in words is "thirty-three billion, one hundred thirty million, three hundred twenty-one thousand, two hundred".