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38899018028 = 22135107146477
BaseRepresentation
bin100100001110100011…
…111110100100101100
310201101221100212011102
4210032203332210230
51114131122034103
625511524542232
72544645124553
oct441643764454
9121357325142
1038899018028
1115551532a92
127657251978
13388bc49940
141c50294d9a
15102a009e88
hex90e8fe92c

38899018028 has 24 divisors (see below), whose sum is σ = 73324543152. Its totient is φ = 17949754944.

The previous prime is 38899018013. The next prime is 38899018031. The reversal of 38899018028 is 82081099883.

38899018028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 192326 + ... + 338802.

It is an arithmetic number, because the mean of its divisors is an integer number (3055189298).

Almost surely, 238899018028 is an apocalyptic number.

It is an amenable number.

38899018028 is a deficient number, since it is larger than the sum of its proper divisors (34425525124).

38899018028 is a wasteful number, since it uses less digits than its factorization.

38899018028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151601 (or 151599 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 38899018028 in words is "thirty-eight billion, eight hundred ninety-nine million, eighteen thousand, twenty-eight".

Divisors: 1 2 4 13 26 52 5107 10214 20428 66391 132782 146477 265564 292954 585908 1904201 3808402 7616804 748058039 1496116078 2992232156 9724754507 19449509014 38899018028