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45124710640 = 2451314305793
BaseRepresentation
bin101010000001101001…
…000111000011110000
311022110211002210220021
4222001221013003300
51214403411220030
632421403053224
73155142466102
oct520151070360
9138424083807
1045124710640
11181567a4a99
1288b4211214
1343419c7219
142281053572
15129187497a
hexa81a470f0

45124710640 has 40 divisors (see below), whose sum is σ = 105715854288. Its totient is φ = 17912094720.

The previous prime is 45124710629. The next prime is 45124710647. The reversal of 45124710640 is 4601742154.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 45124710596 and 45124710605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45124710647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142417 + ... + 2163376.

Almost surely, 245124710640 is an apocalyptic number.

45124710640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45124710640 is an abundant number, since it is smaller than the sum of its proper divisors (60591143648).

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

45124710640 is a wasteful number, since it uses less digits than its factorization.

45124710640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305937 (or 4305931 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 45124710640 in words is "forty-five billion, one hundred twenty-four million, seven hundred ten thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 131 262 524 655 1048 1310 2096 2620 5240 10480 4305793 8611586 17223172 21528965 34446344 43057930 68892688 86115860 172231720 344463440 564058883 1128117766 2256235532 2820294415 4512471064 5640588830 9024942128 11281177660 22562355320 45124710640