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38227912 = 234778489
BaseRepresentation
bin1001000111010…
…0111111001000
32122221011211121
42101310333020
534241243122
63443205024
7642634432
oct221647710
978834747
1038227912
111a640218
1210976774
137bc6088
145111652
153551bc7
hex2474fc8

38227912 has 8 divisors (see below), whose sum is σ = 71677350. Its totient is φ = 19113952.

The previous prime is 38227897. The next prime is 38227913. The reversal of 38227912 is 21972283.

38227912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28153636 + 10074276 = 5306^2 + 3174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×382279122 = 2922746511759488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38227913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389237 + ... + 2389252.

Almost surely, 238227912 is an apocalyptic number.

It is an amenable number.

38227912 is a deficient number, since it is larger than the sum of its proper divisors (33449438).

38227912 is a wasteful number, since it uses less digits than its factorization.

38227912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4778495 (or 4778491 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 38227912 is about 6182.8724715944. The cubic root of 38227912 is about 336.8683369477.

The spelling of 38227912 in words is "thirty-eight million, two hundred twenty-seven thousand, nine hundred twelve".

Divisors: 1 2 4 8 4778489 9556978 19113956 38227912