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38978230250 = 253155912921
BaseRepresentation
bin100100010011010010…
…001001011111101010
310201121110102020220102
4210103102021133222
51114311411332000
625523434425402
72546626330151
oct442322113752
9121543366812
1038978230250
1115592216333
127679892262
1338a249258b
141c5a9d4598
151031e553d5
hex9134897ea

38978230250 has 16 divisors (see below), whose sum is σ = 72967247496. Its totient is φ = 15591292000.

The previous prime is 38978230237. The next prime is 38978230267. The reversal of 38978230250 is 5203287983.

It can be written as a sum of positive squares in 4 ways, for example, as 24759337201 + 14218893049 = 157351^2 + 119243^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38978230195 and 38978230204.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77956211 + ... + 77956710.

Almost surely, 238978230250 is an apocalyptic number.

38978230250 is a deficient number, since it is larger than the sum of its proper divisors (33989017246).

38978230250 is a wasteful number, since it uses less digits than its factorization.

38978230250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155912938 (or 155912928 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 38978230250 in words is "thirty-eight billion, nine hundred seventy-eight million, two hundred thirty thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 155912921 311825842 779564605 1559129210 3897823025 7795646050 19489115125 38978230250