Search a number
-
+
2981003800320 = 283357131735479
BaseRepresentation
bin101011011000010001101…
…011000010111100000000
3101112222111021120100101000
4223120101223002330000
5342320043433102240
610201242041012000
7425241024136530
oct53302153027400
911488437510330
102981003800320
11a4a266a267a7
124018a4184000
131881520c3170
14a43d206b4c0
1552821baa430
hex2b611ac2f00

2981003800320 has 1152 divisors, whose sum is σ = 13097245593600. Its totient is φ = 625209311232.

The previous prime is 2981003800259. The next prime is 2981003800351. The reversal of 2981003800320 is 230083001892.

It is a happy number.

2981003800320 is a `hidden beast` number, since 298 + 10 + 0 + 38 + 0 + 0 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 544075341 + ... + 544080819.

It is an arithmetic number, because the mean of its divisors is an integer number (11369136800).

Almost surely, 22981003800320 is an apocalyptic number.

2981003800320 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 2981003800320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6548622796800).

2981003800320 is an abundant number, since it is smaller than the sum of its proper divisors (10116241793280).

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

2981003800320 is a wasteful number, since it uses less digits than its factorization.

2981003800320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702 (or 5682 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 2981003800320 in words is "two trillion, nine hundred eighty-one billion, three million, eight hundred thousand, three hundred twenty".