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38928403678 = 229366430723
BaseRepresentation
bin100100010000010100…
…000100110011011110
310201110222122210200211
4210100110010303132
51114211132404203
625514454443034
72545452654163
oct442024046336
9121428583624
1038928403678
111556708394a
12766506347a
1338950680b8
141c5414406a
15102c8b1c6d
hex910504cde

38928403678 has 8 divisors (see below), whose sum is σ = 58591898568. Its totient is φ = 19397770824.

The previous prime is 38928403651. The next prime is 38928403711. The reversal of 38928403678 is 87630482983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×389284036782 (a number of 22 digits) contains 22 as substring.

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, 33214776 + ... + 33215947.

It is an arithmetic number, because the mean of its divisors is an integer number (7323987321).

Almost surely, 238928403678 is an apocalyptic number.

38928403678 is a deficient number, since it is larger than the sum of its proper divisors (19663494890).

38928403678 is a wasteful number, since it uses less digits than its factorization.

38928403678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66431018.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 38928403678 in words is "thirty-eight billion, nine hundred twenty-eight million, four hundred three thousand, six hundred seventy-eight".

Divisors: 1 2 293 586 66430723 132861446 19464201839 38928403678