Search a number
-
+
3091330448640 = 28375719323
BaseRepresentation
bin101100111111000001101…
…001110011110100000000
3101221112021010121210000000
4230333001221303310000
5401122021043324030
610324045420000000
7436225023155460
oct54770151636400
911845233553000
103091330448640
11a920314a15a5
1241b154390000
1319568518b3a5
14a989a79dba0
155562c7c7860
hex2cfc1a73d00

3091330448640 has 2304 divisors, whose sum is σ = 13979311718400. Its totient is φ = 640296493056.

The previous prime is 3091330448623. The next prime is 3091330448683. The reversal of 3091330448640 is 468440331903.

3091330448640 is a `hidden beast` number, since 30 + 9 + 133 + 0 + 4 + 486 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a super-3 number, since 3×30913304486403 (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 134405671669 + ... + 134405671691.

It is an arithmetic number, because the mean of its divisors is an integer number (6067409600).

Almost surely, 23091330448640 is an apocalyptic number.

3091330448640 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 3091330448640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6989655859200).

3091330448640 is an abundant number, since it is smaller than the sum of its proper divisors (10887981269760).

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

3091330448640 is an frugal number, since it uses more digits than its factorization.

3091330448640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 3091330448640 in words is "three trillion, ninety-one billion, three hundred thirty million, four hundred forty-eight thousand, six hundred forty".