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54450086140 = 22516716302421
BaseRepresentation
bin110010101101011110…
…100110000011111100
312012112201102222012001
4302231132212003330
51343003210224030
641003010152044
73635216044552
oct625536460374
9165481388161
1054450086140
112110172169a
12a677282624
1351999bb3a8
1428c7765bd2
15163a3c3cca
hexcad7a60fc

54450086140 has 24 divisors (see below), whose sum is σ = 115029889632. Its totient is φ = 21649613760.

The previous prime is 54450086129. The next prime is 54450086153. The reversal of 54450086140 is 4168005445.

It is a self number, because there is not a number n which added to its sum of digits gives 54450086140.

It is a congruent number.

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, 8147871 + ... + 8154550.

It is an arithmetic number, because the mean of its divisors is an integer number (4792912068).

Almost surely, 254450086140 is an apocalyptic number.

It is an amenable number.

54450086140 is an abundant number, since it is smaller than the sum of its proper divisors (60579803492).

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

54450086140 is a wasteful number, since it uses less digits than its factorization.

54450086140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302597 (or 16302595 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 54450086140 in words is "fifty-four billion, four hundred fifty million, eighty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 16302421 32604842 65209684 81512105 163024210 326048420 2722504307 5445008614 10890017228 13612521535 27225043070 54450086140