Search a number
-
+
33133950720 = 283451323161
BaseRepresentation
bin11110110110111011…
…111111011100000000
310011112011101002120000
4132312323333130000
51020324242410340
623115503320000
72252042635263
oct366673773400
9104464332500
1033133950720
1113063284652
1265085b0000
133180749400
14186475ccda
15cddd2bd30
hex7b6eff700

33133950720 has 1080 divisors, whose sum is σ = 134694628992. Its totient is φ = 7763558400.

The previous prime is 33133950683. The next prime is 33133950721. The reversal of 33133950720 is 2705933133.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133950721) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 543179490 + ... + 543179550.

Almost surely, 233133950720 is an apocalyptic number.

33133950720 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 33133950720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67347314496).

33133950720 is an abundant number, since it is smaller than the sum of its proper divisors (101560678272).

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

33133950720 is a wasteful number, since it uses less digits than its factorization.

33133950720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 36.

The spelling of 33133950720 in words is "thirty-three billion, one hundred thirty-three million, nine hundred fifty thousand, seven hundred twenty".