Search a number
-
+
2943988281696 = 2537211331171889
BaseRepresentation
bin101010110101110011011…
…000000011000101100000
3101102102221121100011122210
4222311303120003011200
5341213242000003241
610132241034002120
7422460526335600
oct52656330030540
911372847304583
102943988281696
11a355a16a97a0
123b6693876340
13184803450717
14a26bddc6c00
15518a71ee316
hex2ad73603160

2943988281696 has 288 divisors, whose sum is σ = 9836607392640. Its totient is φ = 762357657600.

The previous prime is 2943988281677. The next prime is 2943988281697. The reversal of 2943988281696 is 6961828893492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2943988281697) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17041320 + ... + 17213208.

It is an arithmetic number, because the mean of its divisors is an integer number (34154886780).

Almost surely, 22943988281696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2943988281696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4918303696320).

2943988281696 is an abundant number, since it is smaller than the sum of its proper divisors (6892619110944).

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

2943988281696 is a wasteful number, since it uses less digits than its factorization.

2943988281696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172258 (or 172243 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 75.

The spelling of 2943988281696 in words is "two trillion, nine hundred forty-three billion, nine hundred eighty-eight million, two hundred eighty-one thousand, six hundred ninety-six".