Search a number
-
+
38038874438 = 2234722976831
BaseRepresentation
bin100011011011010010…
…110010100101000110
310122011222212000222102
4203123102302211012
51110400422440223
625250321032102
72514432045365
oct433322624506
9118158760872
1038038874438
111514aa53414
127457185632
133782999636
141babd517dc
15ec9752928
hex8db4b2946

38038874438 has 32 divisors (see below), whose sum is σ = 61072220160. Its totient is φ = 17727446880.

The previous prime is 38038874431. The next prime is 38038874453. The reversal of 38038874438 is 83447883083.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38038874431) 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 15 ways as a sum of consecutive naturals, for example, 456683 + ... + 533513.

It is an arithmetic number, because the mean of its divisors is an integer number (1908506880).

Almost surely, 238038874438 is an apocalyptic number.

38038874438 is a deficient number, since it is larger than the sum of its proper divisors (23033345722).

38038874438 is a wasteful number, since it uses less digits than its factorization.

38038874438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77132.

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 38038874438 in words is "thirty-eight billion, thirty-eight million, eight hundred seventy-four thousand, four hundred thirty-eight".

Divisors: 1 2 23 46 47 94 229 458 1081 2162 5267 10534 10763 21526 76831 153662 247549 495098 1767113 3534226 3611057 7222114 17594299 35188598 83054311 166108622 404668877 809337754 826932053 1653864106 19019437219 38038874438