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2691230081120 = 255731929611459
BaseRepresentation
bin100111001010011001110…
…100000010000001100000
3100112021112110012012122122
4213022121310002001200
5323043114400043440
65420200052323412
7365302122152000
oct47123164020140
910467473165578
102691230081120
11948387247639
123756b3613568
13166a21b0b1a9
1494383152000
154a0121a57b5
hex27299d02060

2691230081120 has 768 divisors, whose sum is σ = 8211974400000. Its totient is φ = 829595934720.

The previous prime is 2691230081081. The next prime is 2691230081203. The reversal of 2691230081120 is 211800321962.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1844570951 + ... + 1844572409.

It is an arithmetic number, because the mean of its divisors is an integer number (10692675000).

Almost surely, 22691230081120 is an apocalyptic number.

2691230081120 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 2691230081120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4105987200000).

2691230081120 is an abundant number, since it is smaller than the sum of its proper divisors (5520744318880).

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

2691230081120 is a wasteful number, since it uses less digits than its factorization.

2691230081120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 2691230081120 in words is "two trillion, six hundred ninety-one billion, two hundred thirty million, eighty-one thousand, one hundred twenty".