Base | Representation |
---|---|
bin | 100011011110100011… |
… | …110100101001000010 |
3 | 10122022210221222200220 |
4 | 203132203310221002 |
5 | 1111003434432403 |
6 | 25255555323510 |
7 | 2515665601146 |
oct | 433643645102 |
9 | 118283858626 |
10 | 38093670978 |
11 | 1517897a910 |
12 | 74715b0596 |
13 | 379114401c |
14 | 1bb5337226 |
15 | ece478953 |
hex | 8de8f4a42 |
38093670978 has 64 divisors (see below), whose sum is σ = 83495232000. Its totient is φ = 11490652800.
The previous prime is 38093670973. The next prime is 38093670983. The reversal of 38093670978 is 87907639083.
It is an interprime number because it is at equal distance from previous prime (38093670973) and next prime (38093670983).
It is a super-3 number, since 3×380936709783 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (38093670973) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15049573 + ... + 15052103.
It is an arithmetic number, because the mean of its divisors is an integer number (1304613000).
Almost surely, 238093670978 is an apocalyptic number.
38093670978 is an abundant number, since it is smaller than the sum of its proper divisors (45401561022).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38093670978 is a wasteful number, since it uses less digits than its factorization.
38093670978 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3503.
The product of its (nonzero) digits is 13716864, while the sum is 60.
The spelling of 38093670978 in words is "thirty-eight billion, ninety-three million, six hundred seventy thousand, nine hundred seventy-eight".
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