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38789995554 = 234239444417
BaseRepresentation
bin100100001000000100…
…000101110000100010
310201010100012221110000
4210020010011300202
51113420214324204
625453032120430
72542152344022
oct441004056042
9121110187400
1038789995554
11154a5a39872
127626836116
1338724974bb
141c3d9d5a82
151020672039
hex908105c22

38789995554 has 20 divisors (see below), whose sum is σ = 86918323734. Its totient is φ = 12929998464.

The previous prime is 38789995513. The next prime is 38789995567. The reversal of 38789995554 is 45559998783.

It can be written as a sum of positive squares in only one way, i.e., 29385844929 + 9404150625 = 171423^2 + 96975^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 119722047 + ... + 119722370.

Almost surely, 238789995554 is an apocalyptic number.

38789995554 is an abundant number, since it is smaller than the sum of its proper divisors (48128328180).

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

38789995554 is a wasteful number, since it uses less digits than its factorization.

38789995554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239444431 (or 239444422 counting only the distinct ones).

The product of its digits is 489888000, while the sum is 72.

The spelling of 38789995554 in words is "thirty-eight billion, seven hundred eighty-nine million, nine hundred ninety-five thousand, five hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 239444417 478888834 718333251 1436666502 2154999753 4309999506 6464999259 12929998518 19394997777 38789995554