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107806746780 = 2232517232296689
BaseRepresentation
bin110010001100111001…
…0000110100010011100
3101022021020102011120100
41210121302012202130
53231242011344110
6121305320421100
710534360141125
oct1443162064234
9338236364510
10107806746780
11417a2109547
1218a88317790
13a220cbb435
145309bc104c
152c0e7aebc0
hex1919c8689c

107806746780 has 288 divisors, whose sum is σ = 362936246400. Its totient is φ = 25764102144.

The previous prime is 107806746779. The next prime is 107806746787. The reversal of 107806746780 is 87647608701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107806746787) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16113676 + ... + 16120364.

It is an arithmetic number, because the mean of its divisors is an integer number (1260195300).

Almost surely, 2107806746780 is an apocalyptic number.

107806746780 is a gapful number since it is divisible by the number (10) 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 107806746780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181468123200).

107806746780 is an abundant number, since it is smaller than the sum of its proper divisors (255129499620).

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

107806746780 is a wasteful number, since it uses less digits than its factorization.

107806746780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973 (or 6968 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 107806746780 in words is "one hundred seven billion, eight hundred six million, seven hundred forty-six thousand, seven hundred eighty".