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38893158492 = 2233241096541
BaseRepresentation
bin100100001110001101…
…101000000001011100
310201101112100011101120
4210032031220001130
51114123122032432
625511155210540
72544544251426
oct441615500134
9121345304346
1038893158492
11155491a06a1
1276552a6a50
13388a977866
141c4d5ab816
15102974dc2c
hex90e36805c

38893158492 has 12 divisors (see below), whose sum is σ = 90750703176. Its totient is φ = 12964386160.

The previous prime is 38893158481. The next prime is 38893158497. The reversal of 38893158492 is 29485139883.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38893158497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620548259 + ... + 1620548282.

It is an arithmetic number, because the mean of its divisors is an integer number (7562558598).

Almost surely, 238893158492 is an apocalyptic number.

It is an amenable number.

38893158492 is an abundant number, since it is smaller than the sum of its proper divisors (51857544684).

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

38893158492 is a wasteful number, since it uses less digits than its factorization.

38893158492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241096548 (or 3241096546 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 60.

The spelling of 38893158492 in words is "thirty-eight billion, eight hundred ninety-three million, one hundred fifty-eight thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 3241096541 6482193082 9723289623 12964386164 19446579246 38893158492