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43448516680 = 2357314879629
BaseRepresentation
bin101000011101101110…
…111100000001001000
311011011000001100001111
4220131232330001020
51202440310013210
631543204300104
73065460204202
oct503556740110
9134130040044
1043448516680
1117476611728
1285069a1634
13413566458a
1421625a7772
1511e462488a
hexa1dbbc048

43448516680 has 32 divisors (see below), whose sum is σ = 99098335800. Its totient is φ = 17141331456.

The previous prime is 43448516659. The next prime is 43448516711. The reversal of 43448516680 is 8661584434.

It can be written as a sum of positive squares in 4 ways, for example, as 39659129316 + 3789387364 = 199146^2 + 61558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7436895 + ... + 7442734.

Almost surely, 243448516680 is an apocalyptic number.

43448516680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43448516680 is an abundant number, since it is smaller than the sum of its proper divisors (55649819120).

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

43448516680 is a wasteful number, since it uses less digits than its factorization.

43448516680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879713 (or 14879709 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 43448516680 in words is "forty-three billion, four hundred forty-eight million, five hundred sixteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 73 146 292 365 584 730 1460 2920 14879629 29759258 59518516 74398145 119037032 148796290 297592580 595185160 1086212917 2172425834 4344851668 5431064585 8689703336 10862129170 21724258340 43448516680