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2969905808880 = 243357123098387
BaseRepresentation
bin101011001101111100001…
…011100100010111110000
3101111220211211201222011000
4223031330023210113300
5342124331341341010
610152204512322000
7424366014565413
oct53157413442760
911456754658130
102969905808880
11a4559144954a
123bb707543300
131870a3aa931a
14a3a5c16db7a
15523c27117c0
hex2b37c2e45f0

2969905808880 has 320 divisors, whose sum is σ = 10379485670400. Its totient is φ = 780389084160.

The previous prime is 2969905808839. The next prime is 2969905808941. The reversal of 2969905808880 is 888085099692.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 2969905808799 and 2969905808808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354104047 + ... + 354112433.

It is an arithmetic number, because the mean of its divisors is an integer number (32435892720).

Almost surely, 22969905808880 is an apocalyptic number.

2969905808880 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 2969905808880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5189742835200).

2969905808880 is an abundant number, since it is smaller than the sum of its proper divisors (7409579861520).

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

2969905808880 is a wasteful number, since it uses less digits than its factorization.

2969905808880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10789 (or 10777 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 72.

The spelling of 2969905808880 in words is "two trillion, nine hundred sixty-nine billion, nine hundred five million, eight hundred eight thousand, eight hundred eighty".