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38228768 = 2510932
BaseRepresentation
bin1001000111010…
…1001100100000
32122221020000022
42101311030200
534241310033
63443213012
7642640064
oct221651440
978836008
1038228768
111a640926
1210977168
137bc6596
145111aa4
153552098
hex2475320

38228768 has 18 divisors (see below), whose sum is σ = 75331809. Its totient is φ = 19096896.

The previous prime is 38228747. The next prime is 38228777. The reversal of 38228768 is 86782283.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 23697424 + 14531344 = 4868^2 + 3812^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=4372.

It is a super-2 number, since 2×382287682 = 2922877405595648, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 34430 + ... + 35522.

Almost surely, 238228768 is an apocalyptic number.

It is an amenable number.

38228768 is a deficient number, since it is larger than the sum of its proper divisors (37103041).

38228768 is an frugal number, since it uses more digits than its factorization.

38228768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 1095 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 38228768 is about 6182.9416946952. The cubic root of 38228768 is about 336.8708513159.

The spelling of 38228768 in words is "thirty-eight million, two hundred twenty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 1093 2186 4372 8744 17488 34976 1194649 2389298 4778596 9557192 19114384 38228768