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2108419740 = 2233571931947
BaseRepresentation
bin111110110101011…
…1110111010011100
312102221100211011000
41331222332322130
513304223412430
6545114430300
7103151162220
oct17552767234
95387324130
102108419740
11992169a59
124aa132390
13277a7835b
1416003c780
15c517be60
hex7dabee9c

2108419740 has 384 divisors, whose sum is σ = 8154316800. Its totient is φ = 441365760.

The previous prime is 2108419727. The next prime is 2108419769. The reversal of 2108419740 is 479148012.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2108419695 and 2108419704.

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, 2225947 + ... + 2226893.

It is an arithmetic number, because the mean of its divisors is an integer number (21235200).

Almost surely, 22108419740 is an apocalyptic number.

2108419740 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 2108419740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4077158400).

2108419740 is an abundant number, since it is smaller than the sum of its proper divisors (6045897060).

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

2108419740 is a wasteful number, since it uses less digits than its factorization.

2108419740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2108419740 is about 45917.5319458701. The cubic root of 2108419740 is about 1282.2883341391.

The spelling of 2108419740 in words is "two billion, one hundred eight million, four hundred nineteen thousand, seven hundred forty".