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20374157760 = 26351113714083
BaseRepresentation
bin10010111110011001…
…001111100111000000
31221120220120110012120
4102332121033213000
5313211241022020
613205412524240
71320614324565
oct227631174700
957526513176
1020374157760
118705754310
123b47320680
131bc906b868
14db3c8086c
157e3a27740
hex4be64f9c0

20374157760 has 224 divisors, whose sum is σ = 71088820992. Its totient is φ = 4902789120.

The previous prime is 20374157743. The next prime is 20374157761. The reversal of 20374157760 is 6775147302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374157761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1439679 + ... + 1453761.

It is an arithmetic number, because the mean of its divisors is an integer number (317360808).

Almost surely, 220374157760 is an apocalyptic number.

20374157760 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 20374157760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35544410496).

20374157760 is an abundant number, since it is smaller than the sum of its proper divisors (50714663232).

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

20374157760 is a wasteful number, since it uses less digits than its factorization.

20374157760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14251 (or 14241 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 20374157760 in words is "twenty billion, three hundred seventy-four million, one hundred fifty-seven thousand, seven hundred sixty".