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38645268468 = 2233220439039
BaseRepresentation
bin100011111111011011…
…111111111111110100
310200202020220001012120
4203333123333333310
51113121142042333
625430422115540
72535444235122
oct437733777764
9120666801176
1038645268468
1115431279204
1275a627bbb0
13384b4c3681
141c286c0912
151012ad4db3
hex8ff6ffff4

38645268468 has 12 divisors (see below), whose sum is σ = 90172293120. Its totient is φ = 12881756152.

The previous prime is 38645268457. The next prime is 38645268491. The reversal of 38645268468 is 86486254683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610219508 + ... + 1610219531.

It is an arithmetic number, because the mean of its divisors is an integer number (7514357760).

Almost surely, 238645268468 is an apocalyptic number.

It is an amenable number.

38645268468 is an abundant number, since it is smaller than the sum of its proper divisors (51527024652).

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

38645268468 is a wasteful number, since it uses less digits than its factorization.

38645268468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220439046 (or 3220439044 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 60.

The spelling of 38645268468 in words is "thirty-eight billion, six hundred forty-five million, two hundred sixty-eight thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 3220439039 6440878078 9661317117 12881756156 19322634234 38645268468